Sunday

April 20, 2014

April 20, 2014

Number of results: 655

**Math**

Can someone check my answers for me pls? True or False LCM of 10 and 18 is 180; False LCM of 8 and 30 is 120; True LCM of 3 and 4 is 12; True LCM of 42 and 28 is 168; True LCM of 9 and 15 is 45; True
*Friday, December 5, 2008 at 12:30pm by Jaden*

**factors math**

This is a problem that requires the understanding of the relationship between LCM and GCF. Take the example of 45 and 63: 45=9*5 63=9*7 GCF=9 LCM=9*5*7 So you see that GCF*LCM equals the products of the two numbers. Conversely, LCM/GCF is the product of factors NOT common to ...
*Tuesday, November 29, 2011 at 6:33pm by MathMate*

**algebra**

5a^2 = 5*a^2 16a^2 = 2^4 * a^2 take the highest power of each prime (assuming a is not divisible by 2 or 5) LCM = 2^4*5*a^2 = 80a^2 17b^2 = 17*b^2 3b^3 = 3*b^3 LCM = 3*17*b^3 = 51b^3 The LCM is the smallest number that can be divided by each of the two given numbers. another ...
*Wednesday, October 10, 2012 at 10:55pm by Steve*

**LCM of two numbers?**

That would mean that 6 is an integer multiple of pi/2. By that reasoning, LCM of 30/2 and 30/3 is also 6. I think we can agree that LCM(1/2,1/3) is 1.
*Sunday, December 15, 2013 at 8:37pm by Steve*

**algebra**

1.FIND THE LCM OF 10X^7 AND 50X^4 2.FIND THE LCM OF x^2 -36 AND x^2 + 11x +30 3.FIND THE LCM y^3+8y^2+16y, y^2 -8y 4.FIND The LCM Of 15z^2 +60z and 3z^2 + 15z +12
*Wednesday, November 9, 2011 at 11:43pm by lisa*

**math**

Typically for two numbers A and B for which we have found the LCM and HCF. The general formula is that A*B = LCM*HCF Can you find A and B such that LCM=HCF?
*Friday, August 10, 2012 at 7:39pm by MathMate*

**Algebra**

I am stumped by these two LCM questions for some reason. Find The LCM for #1 2(R-7) and 14(R-7) #2 (1+4r), (1-16r^2), and (1-4r) It seems like #1 is already at the LCM and #2 would be (1+4r)(1-4r) Am I even vaguely correct? Thanks for your help.
*Tuesday, August 2, 2011 at 1:58am by Aria*

**Math**

Find the LCM of 11(s-3) and 33(s-3). LCM of 11 is 11*1 LCM of 33 is 3*11 LCM is 11*3*1=33 What do I do from here? I put down 33(s-3) was the answer but I don't think that is right. Thanks for your help.
*Sunday, May 16, 2010 at 2:29pm by B.B.*

**Math**

You must make a common denominator. 1. Find the lcm of the denominators 2. Multiply the denominator by the number that makes it the lcm (ex. 2/3 plus 2/4 lcm o 3 and 4 is 12. 3x4= 12. 4x3=12) 3. add them up!
*Tuesday, October 12, 2010 at 7:12pm by Heather*

**Please Please help!! Math - LCM**

To find the next occurrence of extreme famine, we need to find the least common multiple (LCM) of the two recurrence intervals of 13 and 17. LCM has the property that if the numbers are both prime, LCM is the product of the two numbers. Since 13 and 17 are both prime, the LCM ...
*Thursday, March 1, 2012 at 8:03am by MathMate*

**algebra**

10x^7 = 10x^4 * x^3 50x^4 = 10x^4 * 5 LCM = 10x^4 * 5x^3 = 50x^7 x^2 - 36 = (x+6)(x-6) x^2 + 11x + 30 = (x+6)(x+5) LCM = (x+6)(x-6)(x+5) y^3 + 8y^2 + 16y = y(y+4)(y+4) y^2 - 8y = y(y-8) LCM = y(y+4)(y+4)(y-8) 15z^2 + 60z = 15z(z+4) = 3(z+4)*5z 3z^2 + 15z + 12 = 3(z+4)(z+1) LCM...
*Wednesday, November 9, 2011 at 11:43pm by Steve*

**math**

If you have not learned about LCM before, then you can make a list: 9:00 11 13 15 17 19 21 23:00 9:00 12 15 18 21 0:00 9:00 13 17 21 01:00 21:00 = 9:00 pm is the next time all three bells will ring together. If you are familiar with LCM, then the intervals are 2,3 and 4 hours...
*Thursday, April 7, 2011 at 12:13am by MathMate*

**Math**

Both, in a minute and in an hour. The LCM of 3, 5 and 10 is the same as the LCM of 3 and 10 because 5 divides 10 (5 is a factor of 10). The LCM of 3 and 10 is 30. So the soonest the will flash together is 30 seconds.
*Monday, July 8, 2013 at 7:07am by MathMate*

**Math**

I still do not understand Today was my first day learning how to add 3 sets of fractions with different denominators and I did not get it. I need help with the following please. 1/8 + 1/2 + 3/4 = Waht is the LCM? Answer 8. So convert all the other denominators to eights. 1/8...
*Wednesday, March 21, 2007 at 6:06pm by Andre*

**LCMs/Adding unlike fractions**

The LCM is that smallest whole number that each of your given numbers divide into 8 = 2x2x2 9 = 3x3 12 = 2x2x3 18 = 2x3x3 so looking at those, I will need three 2' and two 3's LCM = 2x2x2x3x3 = 72 As to your second one, 7 = 1x7 5 = 1x5 10 = 2x5 So your lowest common ...
*Sunday, October 9, 2011 at 9:05pm by Reiny*

**Math**

First, i'm assuming there are no exponents. Then i'm going to multiply the coefficients together forming a single coefficient for each monomial. 9u3v2w4 = 216uvw, 15u4v4w3 = 720uvw, The LCM is => The largest coefficient(720). If we divided 720 by 216, we would get a ...
*Friday, October 15, 2010 at 6:40pm by Henry*

**5th grade**

if u have the lcm how do u find the numbers that make the lcm
*Friday, October 29, 2010 at 4:57pm by Anonymous*

**MATH**

5/6+1/5T=4/6 First, you need a common denominator -- the LCM of 5 and 6. What is that LCM?
*Friday, December 10, 2010 at 5:57pm by Ms. Sue*

**algebra**

Find the LCM 10b^6 c^6, 5b^5 c^4, 14b^3 c^7 What is the LCM? I came up with 70(b^6)(c^7) Did I do this correctly? Thank you
*Tuesday, July 1, 2008 at 2:08pm by C*

**algebra**

Find the LCM 10b^6 c^6, 5b^5 c^4, 14b^3 c^7 What is the LCM? I came up with 70(b^6)(c^7) Did I do this correctly? Thank you
*Tuesday, July 1, 2008 at 4:33pm by C*

**Math..LCM**

find LCM 35b^6a^4,5b^8a^5,21b^2a^8 Can anyone help me with this please?
*Sunday, August 8, 2010 at 2:38am by Bonnie*

**math**

There is no LCM for 9 and 7 though so how do you work the second one if there is no lcm?
*Saturday, March 13, 2010 at 7:19pm by Holly*

**Help**

LCM of the coefficients (3, 6) is 6. The common factor is (t-2), so the LCM of the two expressions is 6(t-2).
*Thursday, October 27, 2011 at 6:57pm by MathMate*

**tech III math ( ACT Prep)**

You need the LCM (lowest common multiple) of the two numbers. Here's a systematic way to find the LCM between two numbers. In the following calculation, the number on the right is a common factor. Extract a common factor on each line (write on the right). Then divide each ...
*Monday, June 3, 2013 at 12:46am by MathMate*

**Math**

LCM of any set of primes is their product, since they have no factors in common 6*4=24 LCM(6,4) = 12
*Thursday, October 18, 2012 at 10:28pm by Steve*

**math**

is this right Find the LCM for the given numbers by an appropriate method. 24, 54, and 27 the lcm=216
*Monday, July 20, 2009 at 12:34am by chandice*

**math**

what's the LCM of 45 and 20? what's the LCM of 6 and 50?
*Saturday, September 27, 2008 at 1:06am by brandy*

**Math LCM**

What is the LCM of 8, 11, 36, 80?
*Tuesday, June 26, 2012 at 11:13pm by Emma*

**Math**

if you know the lcm of 4 and 5, how could you find the lcm of 40 and 50
*Tuesday, December 17, 2013 at 7:39pm by Ren*

**math**

Yes, what is the lowest common multiple (LCM) of 30 and 39? 30=2*3*5 39=3*13 The LCM is the product of the highest power of each of the prime factors, namely LCM=2*3*5*13=390 No. of packs required = 390/39=10
*Sunday, September 20, 2009 at 3:04pm by MathMate*

**math!**

To find LCM you must list some of the multiples of the numbers and then find the ones that match which are the same. eg: Find the LCM of 3 and 5 multiples of 3:3,6,9,12,15 multiples of 5:5,10,15,20,25 So,as you can see the LCM would be 15
*Monday, December 10, 2007 at 3:05pm by Zahra*

**find the LCM**

Lcm of 2b, 6c
*Friday, January 11, 2013 at 6:27am by Anonymous*

**math, algebra**

Can someone check this for me : Find the gcf for each of hte following groups of numbers: 36,64, and 180 My answer: gcf=4 Find the lcm for each of the following groups of numbers which ever method you wish:8,15, and 20 My answer: Lcm=1 Find two factors of 15 with a difference ...
*Monday, December 4, 2006 at 7:04pm by jasmine20*

**math**

When finidng the lest common multiply why how do you know which way to list the factoring so that you get the LCM 12=2*2*3 16=2*2*2 I say 2*2*2*3=24 LCM should be 48 What am I doing worng?
*Monday, February 11, 2008 at 8:27pm by Will*

**math**

This is like finding the LCM of the two numbers 365 = 5x73 270 = 5x2x27 LCM = 5x2x27x73 = 19710 days or 54 of our year
*Wednesday, October 13, 2010 at 1:18pm by Reiny*

**maths**

60=2^2*3*5 126=2*3^2*7 The LCM is therefore LCM=2^2*3^2*5*7 =1260 Alternatively you find it by division: 2 | 60, 126 3 | 30, 63 1 | 10, 21 LCM = 2*3*1*10*21 = 1260
*Wednesday, August 24, 2011 at 9:47pm by MathMate*

**java**

Yes, we will be pleased to help you. For this problem, you will need to know how to find common denominators, which is basically the lowest common multiple (LCM) of the denominators. To do this, there are to approaches. The conventional approach is to factorize each ...
*Saturday, April 7, 2012 at 1:43am by MathMate*

**Math**

You are actually just finding the LCM of 6, 9, and 13 which is .. 6 = 2x3 9 = 3x3 13 is prime, so LCM = 3x3x2x13 =234
*Saturday, February 27, 2010 at 11:48am by Reiny*

**gcf and lcm**

express each pair of numbers as products of prime factors and find their gcf and lcm
*Tuesday, September 16, 2008 at 10:38pm by maryjoy*

**math**

The LCM should be divisible by all 3 expressions. LCM = (49-25t^3) = (7-5t)(7+5t).
*Sunday, March 11, 2012 at 3:09pm by Henry*

**Algebra**

LCM of 3(t-2) and 6(t-2) IS the LCM 18(t-2)
*Sunday, February 3, 2008 at 1:11pm by Noah*

**LCM of two numbers?**

LCM = 6
*Sunday, December 15, 2013 at 8:37pm by Kuai*

**Math**

xΩy = LCM(x,y) 10Ω32 = LCM(10,32)=160 6Ω20=LCM(6,20)=60 can you take it from here?
*Tuesday, July 31, 2012 at 9:02pm by MathMate*

**algebra**

I'll assume that 8+7 is really 8+7v Note that 64-49v^2 = (8+7v)(8-7v), so that would also be the LCM of those three expressions. 14x^7 = 14x^5 * x^2 98x^5 = 14x^5 * 7 LCM(a,b) = ab/GCD(a,b) GCD = 14x^5 LCM = 14x^7 * 98x^5 / 14x^5 = 98x^7
*Friday, November 18, 2011 at 11:33pm by Steve*

**Math**

Find the LCM of 12 and 15 Find the LCM of 16 and 20
*Sunday, February 16, 2014 at 11:29am by Anonymous*

**alebra 1**

You want the denominator to be the least common multiple, LCM. That LCM is 3(y-1)(y+1). Once the denominators are the same on both sides, you can write this equation for the numerators only: 3(y+1)^2 - 3(y-1)^2 = 8(y+1)(y-1) 12y = 8 y^2 - 8 2y^2 -3y -2 = 0 (2y +1)(y -2) = 0 y...
*Monday, February 15, 2010 at 11:05pm by drwls*

**algebra**

1. Find the LCM of (8+7), (64-49v^2), and (8-7v) 2. Find the LCM of 14x^7 and 98x^5 3. Find all numbers for which the rational expression is undefined 5/v-9
*Friday, November 18, 2011 at 11:33pm by lisa*

**Math LCM**

8 = 2^3 11 = 11 36 = 2^2 * 3^2 80 = 2^4 * 5 LCM is the product of all the highest powers of the primes listed. It is thus 2^4 * 3^2 * 5 * 11 = 7920
*Tuesday, June 26, 2012 at 11:13pm by Steve*

**math**

Q.1)Find hcf and lcm of the following using fundamntal theorem of arithematic 12,720 and 540. Q.2)Find the greatest number which divides 418,1354 and 2146 exactly leaving remainder 10 in each case. Q.3)If product of HCF and LCM of two numbers is 5120.One number is 6.What is ...
*Sunday, April 25, 2010 at 10:25am by stan*

**Math**

Each permutation can be decomposed in terms of cyclical permutations. The GCM of the cycle lengths is the number of times you need to apply the permutation to get the same result back. This number is, of course, different for each permutation, so we need to find the LCM of ...
*Tuesday, June 18, 2013 at 10:54am by Count Iblis*

**MATHS~~**

let's find the LCM of the three: 27 = 3x3x3 225 = 3x3x5x5 135 = 3x3x3x5 LCM = 3x3x3x5x5 = 675 the next one would be 1350, which of course > 1000 so there is only one such number.
*Friday, May 3, 2013 at 9:22pm by Reiny*

**Math**

The LCM is 240. To find their LCM all you need to do is divide the answers by prime numbers until you are left with either a 1 or a prime number which cannot be divided more. In the case of 30 you have 2,3,5. In the case of 48 you have 2,3,2,2,2. Then write like numbers ...
*Tuesday, September 18, 2007 at 5:52pm by Claire*

**math**

Instead of looking for the LCM of 9 and 7, which are the coefficient of x, you could use the coefficients of y, which are -9 and -3, of which the LCM is simply 9. This way, you will be eliminating y from the equations to find x. Then you will substitute x into the initial ...
*Saturday, March 13, 2010 at 7:19pm by MathMate*

**MATH{lcm}**

ok here is a list of 2 numbers Each and I had to find the LCM of... also the answers... 1.5\10=10 2.8\7=64 3.9\12=36 4.6\8=24 5.3\21=21 6.5\9=45
*Thursday, September 26, 2013 at 6:12pm by mia*

**5th math**

mean is the average add all the numbers to get the sum divide the sum by the number of numbers you are adding. 33 + 41 + 37 + 27 + 32 = 170 since there are 5 numbers, you divide the sum by 5, to get the mean 170/5 = 34 the mean is 34 LCM 6, 4, 8 LCM is 24 how I was taught ...
*Tuesday, January 18, 2011 at 10:21pm by helper*

**math**

I don not understand how to do least common mutiples. Can I please get some help. I need to find the least common multiple of 420 and 196. there is a real neat way to do this which works for the LCM of any number of numerals. 420 196 -------| divide each number by a common ...
*Wednesday, April 18, 2007 at 9:16pm by missy*

**math**

you are finding the LCM of 225 and 365 225 = 5x5x3x3 365 = 5x73 LCM = 5x5x3x3x73 = 16425 days
*Sunday, February 13, 2011 at 8:49am by Reiny*

**Word problem**

I believe the LCM solution is most probably the correct one. However, if we interpret the expression "in the same straight line" in the general sense, it means that any planet could be on the same side OR on the other side of the sun. In which case the LCM would be for half ...
*Saturday, December 12, 2009 at 9:46am by MathMate*

**5th grade math**

GCF of 24,28 ..(2*2*2*3, 2*2*7) GCF is 4 LCM of (27,36)..(3*3*3, 2*2*3*3) LCM is 27*4
*Thursday, December 17, 2009 at 3:01pm by bobpursley*

**5th grade math**

what is the least common multiple The least common multiple is the lowest possible number that has both numbers for a factor. For instance, if you are asked to find the LCM for 4 and 8, the LCM would be 8 because it is divisible by both 4 and 8. If you were given 3 and 4, the ...
*Thursday, October 5, 2006 at 6:24pm by leo*

**Help**

t^2 - 8t = t(t-8) Now, a cubic is not easy to factor, but since you're looking for a LCM, try dividing by (t-8). No luck there. So, since the two polynomials have no common factors, the LCM is just (t^3+8t^2+16)(t^2-8t)
*Friday, October 28, 2011 at 12:59pm by Steve*

**Algebra**

Find the LCM of (7+9u), (49-81u^2), and (7-9u) Find the LCM of 15x^8 and 75x^8
*Sunday, July 11, 2010 at 1:05pm by Rene*

**maths**

if the LCM of first 20 natural numbers is X, then what will be the LCM of first 25 natral numbers
*Saturday, March 23, 2013 at 4:05am by Meenakshi*

**math**

4) It can be assumed from the count that that half of the deer in the preserve had been tagged. If the total number of deer present did not change, there are equal numbers of tagged and untagged deer. That makes 1370 total. 5). Find the lcm of 2(x-11) and 22(x-11)? For this ...
*Saturday, May 29, 2010 at 8:21pm by drwls*

**Math **

lets say you want LCM of 2 and 6 . we know it is 6 Similarly you have here 11(z-3) and 33(z-3); 33(z-3) can be written as 11*3 (z-3) So the LCM should be 33(z-3)
*Sunday, October 18, 2009 at 4:58pm by Vipster*

**algebra**

I see the numbers, 15, 5 , and 6, for those the LCM = 30 I see c^2 , c^6, and c^7 , so I need c^7 as LCM I see b^6, b^4, b^3, so b^6 will do it looks like 30 c^7 b^6
*Sunday, May 20, 2012 at 10:28pm by Reiny*

**Algebra**

As you probably know, if one number is a multiple of the other, the bigger number is the LCM of the two. Post your exact answer to #1 to confirm if you wish. For #2, you are more than vaguely correct, but you do not appear to have any justification of your response. You can ...
*Tuesday, August 2, 2011 at 1:58am by MathMate*

**math, correction**

Find the LCM for 4 and 20 My answer is: LCM IS 20 Your answer is right
*Tuesday, February 13, 2007 at 3:12pm by jasmine20*

**math**

How do u find the lcm v^3+4v^+4v, v^2-4z the lcm is ___(__)^2 (v-___)
*Friday, May 22, 2009 at 11:43pm by shelly*

**LCM of two numbers?**

the lcm of pi/2 and pi/3 is 6?
*Sunday, December 15, 2013 at 8:37pm by bob*

**MATH **

The LCM (Lowest common multiple) of the two numbers is the length of the cycle when he does the two activities the same day. Since 3 and 4 do not have common factors, the LCM is simply the product of the two numbers.
*Monday, September 14, 2009 at 8:12pm by MathMate*

**math**

Thanks, it's much easier when you pin-point the problem! In general, the coefficients of x and y are not the same between the two equations. When you want to eliminate y, and the coefficients are not the same, you find the LCM (lowest common multiple) of the two coefficients ...
*Monday, June 1, 2009 at 5:13pm by MathMate*

**Algebra**

is that an olympiad question? I so, the answer may be 12:25. It may be this because you have to use lcm to get the answer. The lcm is 240 and 80 goes in to 240 3 times. 9:25 plus 3 hours is 12:15.
*Tuesday, October 12, 2010 at 7:01pm by Heather*

**math**

This is just like finding the LCM of 24, 18 ,12, and 15 24 = 2x2x2x3 18 =2x3x3 12 = 2x2x3 15 = 3x5 The LCM = 2x2x2x3x5 = 120
*Monday, May 13, 2013 at 9:00pm by Reiny*

**Math HELP!**

Thank you Reiny so much for you help. Can you tell me if I am on the right track with this problem: 4c^2/4c^2-8c+4 x 4c-4/2c When solving this am I supposed to find the gcf or lcm to solve> would the lcm be 2 and the gcf be 16? I don't know if I am even going down the right...
*Friday, September 24, 2010 at 6:07pm by Sabrina*

**algebra**

10=2*5 50=2*5^2 LCM(10,50) = 2*5^2 = 50 So, your LCM is 50x^6 Highest powers of all prime factors, considering x a "prime"
*Tuesday, July 30, 2013 at 11:55am by Steve*

**math,algebra,bobpursley**

Let me know if this is correct now: (1)Finding the lcm using which ever method for:5,15 , and 20 8:2x2x2x3x5x5 15:2x2x2x3x5x5 20:2x2x2x3x5x5 --------------- LCM:2x2x2x3x5x5 After simplification LCM:120 (2)Find the GCF for each of the following numbers: 36, 64, 180 Prime ...
*Monday, December 4, 2006 at 11:25pm by jasmine20*

**math**

Like fractions are fractions with the same denominator. You can add and subtract like fractions easily - simply add or subtract the numerators and write the sum over the common denominator. Before you can add or subtract fractions with different denominators, you must first ...
*Tuesday, January 17, 2012 at 9:07pm by Laruen *

**math , algebra**

Let me know if this is correct : (1)Finding the lcm using which ever method for:5,15 , and 20 8:2x2x2x3x5x5 15:2x2x2x3x5x5 20:2x2x2x3x5x5 --------------- LCM:2x2x2x3x5x5 After simplification LCM:120 (2)Find the GCF for each of the following numbers: 36, 64, 180 Prime Factors ...
*Tuesday, December 5, 2006 at 3:08am by Jasmine*

**math**

"Ads not by this Site " ?????? No idea what that is supposed to mean. I am starting to guess that "for numbers 10-13" you mean question #10, etc ok, then .... Find 2 numbers which have 10 as their LCM how about (2,5) or (1,10) #11. LCM is 36 could be (4,9) or (1, 36) ? you do ...
*Thursday, September 26, 2013 at 9:46pm by Reiny*

**chemistry(balance equation)**

Thank you DrBob, but i am only a form 4 student in hk,i havent learnt about anything of redox.is there any SUPER SHORT CUT for balance simple and complex equation?in fact i have asked several people,some of them said that take LCM of the atom counts,but i dont know take which ...
*Thursday, January 19, 2012 at 9:54pm by amper*

**Algebra**

Could I get some help Please!!!!!!!!! (1) Find the LCD 3/3v^2-3v-7/3v-3 (2) Find the LCM 14z^7 and 98z^8 (3) Find LCM y^3+6y^2+9y,y^2-6y
*Wednesday, December 17, 2008 at 9:24pm by pj*

**5th grade math**

32 = 2^5 75 = 3x5x5 LCM (or same as lowest common denominator) = (2^5)(3x5x5) = 32x75 = 2400 since the two numbers have no common factors between them you would just take their product. however, for something like 12 and 36 ... 12 = 4x3 40 = 4x2x5 so LCM = 4x3x2x5 = 120
*Wednesday, April 15, 2009 at 5:54pm by Reiny*

**math**

Since divided into bags of 2,3,4,5,6, all left one cookie, we have also another way. Find the LCM (lowest common multiple) of 2,3,4,5,6. Call this L. Check if L+1 is divisible by 7. If it is, L is your answer. If it is not, try 2L+1, 3L+1, ... until it is divisible by 7. You ...
*Monday, November 30, 2009 at 4:52pm by MathMate*

**math 156**

Example of application to fractions: 5/6+ 7/15 = 25/30 + 14/30 ..... (1) = 39/30 = 13/10 .... (2) = 1 3/10 (1) LCM of denominators 6 and 15 is 30 (2) To simplify a fraction to simplest terms, both numberator and denominator are divided by the GCF. In order to find the GCF or ...
*Tuesday, June 23, 2009 at 10:49am by MathMate*

**MATH**

Given the GCF or LCM, what else do you know about each pair of numbers? a) Two numbers have GCF of 2. b) Two numbers have an LCM of 2. Please and thankyou!
*Monday, September 13, 2010 at 4:45pm by Vanessa*

**discrete math**

If a and b are positive integers, and m=lcm(a,b), explain why m divides any common multiple of a and b. The answer is in the definition of lcm:] the smallest multiple that is exactly divisible by every member of a set of numbers. So if m is divisble by a or b, then ab divides ...
*Wednesday, March 7, 2007 at 1:48am by romulo*

**ALGEBRA/PLEASE HELP**

have the answer and would love confirmation. VERY APPRECIATED! Find the LCM OF (1+2t), (1-4t^2), and (1-2t). 1-4t^2=(1+2t)(1-2t) 1+2t = 1+2t 1-4t^2= (1+2t)(1-2t) 1-2t = 1 - 2t. The LCM for all numbers is 1-4t^2 = (1+2t)(1-2t) Thank you
*Wednesday, January 26, 2011 at 7:16pm by AMY*

**math-LCM**

Think of the problem of two runners around a 1-kilometer track. Runner A can make one round in 8 minutes, and runner B can do this in 6 minutes. If they start together, when will they meet at the starting point again? 2 | 8, 6 | 4, 3 2*4*3=24 Take the LCM of 8 and 6 to get 24...
*Saturday, February 12, 2011 at 11:35pm by MathMate*

**ALGEBRA**

I have the answer and would love confirmation. VERY APPRECIATED! Find the LCM OF (1+2t), (1-4t^2), and (1-2t). 1-4t^2=(1+2t)(1-2t) 1+2t = 1+2t 1-4t^2= (1+2t)(1-2t) 1-2t = 1 - 2t. The LCM for all numbers is 1-4t^2 = (1+2t)(1-2t) Thank you
*Wednesday, January 26, 2011 at 6:31pm by AMY*

**Math**

To find the lowest common multiple (LCM) of two or more numbers, list the multiples of the larger number and stop when you find a multiple of the other number. This is the LCM. Multiples of 48: 48, 96, 144, 192, 240, 288, 336, etc. Which of these numbers does 30 go into evenly?
*Tuesday, September 18, 2007 at 5:52pm by Ms. Sue*

**math**

This is just like finding the LCM of 85 and 100 85 = 5x17 100 = 5x20 LCM = 5x17x20 = 1700 e.g. 85 170 255 ... 1615 1700 ... 100 200 300 .. 1600 1700 .. It will take 1700 minutes = 28 hrs. 20 minutes. Add that time to your noon.
*Tuesday, October 4, 2011 at 10:36am by Reiny*

**MAth**

If you know how to find the LCM (Lowest common multiple) of two numbers, then the LCM and any multiple of 4 and 6 will be divisible by both 4 and 6. Otherwise, make a list of multiples of 4, and below that a list of multiples of 6. If you see a number in both, then the number ...
*Thursday, February 10, 2011 at 10:23pm by MathMate*

**MATH**

Please help me to find the least common multiple of 24 and 48. 1st go to this site: http://www.aaamath.com/fra66i-lcm.html Then give it a whirl and post what you think the answer is and we'll see if you need further help.
*Sunday, April 29, 2007 at 3:09pm by carmen*

**Math**

4=2*2 5 = 5 LCM = 2*2*5 = 20 40 = 10*4 50 = 10*5 so I suspect that LCM = 10*20 = 200 check 40 = 10 * 4 = 2 * 5 * 2 * 2 50 = 10 * 5 = 2 * 5 * 5 need 3 twos and two fives 2*2*2 * 5*5 = 8*25 = 200 sure enough
*Tuesday, December 17, 2013 at 7:39pm by Damon*

**Math**

I am 55, my motherlaw is 70, my friend is 40. How do I figure out the LCM and the GCF. My home assignment is listed as= List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was 15 years of age or younger...
*Tuesday, January 25, 2011 at 8:00pm by melvin*

**MATH**

The greatest common factor is 4. Multiply 16 * 20. Divide that answer by 4. This site shows that method plus another similar method. http://www.aaamath.com/fra66i-lcm.html
*Wednesday, October 22, 2008 at 10:28pm by Ms. Sue*

**math**

The LCM of 45 and 20 must have one 5, two 3's and two 2's as factors. That makes it 180. The LCM of 6 and 50 must have two 5's, one 2 and one 3 as factors. 5x5x2x3 = ?
*Saturday, September 27, 2008 at 1:06am by drwls*

**math 6 grade**

When the LCM of two numbers the same as one of the numbers?Use an example to explain. What is the LCM of six and two? so the LCM of six and two is the answer? Of course not. It is an example of what the question seeks. 3. the answer is 3! I relly apresiat this thank you How do...
*Wednesday, November 8, 2006 at 8:53pm by brittany*

**Algebra 2**

1)Find the LCM of m^2-4m-5 and m^2+8m+7. factorize both expressions you get (m+1)(m-5) and (m+1)(m+7) common factor is m+1 so LCM = (m+1)(m-5)(m+7) = m^3+3m^2-33m-35 2)Solve 8/(t+5)=(t-3)/(t+5)+(1/3). First convert the 1/3 to a fraction with (t+5) on the bottom and the other ...
*Tuesday, May 20, 2008 at 1:13pm by Jon*

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