Friday

February 27, 2015

February 27, 2015

Number of results: 308

**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.
*May 16, 2010 by B.B.*

**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
*December 5, 2008 by Jaden*

**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.
*August 2, 2011 by Aria*

**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
*November 9, 2011 by lisa*

**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...
*March 21, 2007 by Andre*

**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
*July 1, 2008 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
*July 1, 2008 by C*

**5th grade**

if u have the lcm how do u find the numbers that make the lcm
*October 29, 2010 by Anonymous*

**math**

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

**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
*September 26, 2013 by mia*

**Math..LCM**

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

**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 ...
*December 4, 2006 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?
*February 11, 2008 by Will*

**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
*January 26, 2011 by AMY*

**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
*January 26, 2011 by AMY*

**Math**

if you know the lcm of 4 and 5, how could you find the lcm of 40 and 50
*December 17, 2013 by Ren*

**mathematics**

The HCF of 2 no. Is 1/28 of their LCM.The sum of the HCF and the LCM is 116.If one of the no. Is 16 , find the other.
*July 30, 2014 by nitya*

**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 ...
*April 18, 2007 by missy*

**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 ...
*April 25, 2010 by stan*

**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
*November 18, 2011 by lisa*

**math, correction**

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

**Algebra**

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

**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 ...
*December 4, 2006 by jasmine20*

**Maths**

Q1.Write the names of the two methods you use to find the HCF and LCM. Q2.Write formula to show the relation between HCF and LCM.
*June 21, 2014 by Pooja kumari*

**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
*December 17, 2008 by pj*

**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 ...
*December 5, 2006 by Jasmine*

**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 ...
*May 20, 2008 by Jon*

**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 ...
*October 5, 2006 by leo*

**Algebra**

LCM of 3(t-2) and 6(t-2) IS the LCM 18(t-2)
*February 3, 2008 by Noah*

**math**

what's the LCM of 45 and 20? what's the LCM of 6 and 50?
*September 27, 2008 by brandy*

**Math LCM**

What is the LCM of 8, 11, 36, 80?
*June 26, 2012 by Emma*

**find the LCM**

Lcm of 2b, 6c
*January 11, 2013 by Anonymous*

**math **

please check my answers 1.which is smallest 5/8,3/4,9/16,7/8 =9/16 2.subtract 6 3/10-4 11/15=1 17/30 3.estimate 6 1/8* 7 4/5=48 4.lcm of 20,32=160 jon spent 1/3 of his study time doing math and 2/7 preparing for history exam. what fraction of his study time remains? = 8/21 5....
*September 18, 2009 by p*

**math**

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

**maths**

if the LCM of first 20 natural numbers is X, then what will be the LCM of first 25 natral numbers
*March 23, 2013 by Meenakshi*

**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 ...
*March 7, 2007 by romulo*

**Math**

Find the LCM of 12 and 15 Find the LCM of 16 and 20
*February 16, 2014 by Anonymous*

**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!
*September 13, 2010 by Vanessa*

**6th grade math**

Just wondering if you could check my answer to this question. Tell whether problem can be solved by using GCF or LCM. Then solve. Sean has 8inch pieces of toy train track and Ruth has 18 inch pieces of train track. How many of each piece would each child need to build tracks ...
*September 9, 2013 by Alex*

**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.
*April 29, 2007 by carmen*

**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...
*January 25, 2011 by melvin*

**Algebra II**

Our current assignment is to find the LCM, Least Common Multiple of two polynomials. I think I'm doing it right but I'm not quite sure. For the first question: 2t^2+t-3, 2t^2+5t+3 I have 2t^2+t+3 as the LCM. Is this correct or can somebody step me through the correct method to...
*February 15, 2007 by Dave*

**discrete math**

If a and b are positive integers, prove that: ab = gcd(a,b)*lcm(a,b). Can visualize this being true and easily create examples just dont know how to prove algebraically. well the gcd of any two number can be found by multiplying the two numbers together and the lcm of all ...
*March 8, 2007 by Rom*

** maths algebra**

HI STEVE, THANKS for your reply back it was the wrong answer the one you worked, yes a hard question, here is an example of simultaneous questions. x-2/3 + y-1/4 =13/12 (1) 2-x/2 + 3+y/3 =11/6 (2) first step is to get rid of fractions. in equation (1) the lcm of denominators ...
*November 13, 2014 by mohammad*

**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...
*November 8, 2006 by brittany*

**LCM of two numbers?**

lcm of two numbers pi/3 pi/2 How do I do it? Would it be pi or pi/6? Thanks
*December 15, 2013 by bob*

**math**

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. Find the prime factorizations of your age and the other two persons’ ages. Show your work listed by name and age. Make ...
*January 25, 2011 by melvin*

**algebra**

Solve. x/9-1/7=26/63 STEP 1: The LCM is _________ To clear denominators, multiply each side of the equation by the LCM. _______/1 (x/9-1/7)=__________/1 multiply 26/63. STEP 2: Use the Distributive Property. _____/1 multiply x/9 - _________/1 multiply 1/7 = ______________. ...
*March 1, 2013 by sally*

**math**

How do I do the LCM?
*March 23, 2008 by Jake*

**Math**

What is the LCM of 25 and 10
*September 17, 2008 by Steven*

**MATH**

WHAT ARE THE LCM OF 16 AND 20
*October 22, 2008 by TREVAIN*

**math**

what is the LCM of 14 and 21?
*January 12, 2009 by austin*

**Math**

LCM of (x-y) and 2(y-x)
*February 26, 2009 by Micheal*

**math**

so the LCM for 4 and 20 is 20
*March 24, 2009 by ferrer*

**math**

what is the lcm of 9,7,2
*May 12, 2009 by Taylor swift*

**LCM**

12/15 (x ?) = 48/60 is it 4 14/20 (x ?) = 7/10 is it 2 3/4 (x ?) = 75/100 is it 5
*May 26, 2009 by ak*

**math**

lcm of 22 5 and 24
*July 20, 2009 by torie*

**math **

LCM OF 35,12,20
*September 10, 2009 by p*

**MATH**

What is the LCM of 1. 9, 12, and 20 2. 9, 21, and 63 3. 10, 20, and 45 THANK YOU!!!!!!!!!!!!
*September 16, 2009 by Madelyn*

**math**

what is the LCM for 16 and 24
*February 24, 2010 by KYLE : )*

**math**

what is the LCM 10 and 35
*February 24, 2010 by BESTY : )*

**Algebra 1**

what's the LCM of: 2r-1 , r+4
*June 30, 2010 by Ana*

**math**

LCM of 2t, (t-2) and t(t-2)
*October 10, 2010 by Shaun*

**math**

what is the LCM of 8 12 and 5
*October 14, 2010 by niki*

**mATH**

what are the LCM of 8 and 20
*December 10, 2010 by JESSICA*

**math**

what is the lcm of 16 and 30
*January 12, 2011 by saleh*

**algebra**

LCM of 14, 40, and 36
*April 4, 2011 by Kimberly*

**math**

Lcm of 2 and 3
*October 19, 2011 by Bri*

**Help**

Find the LCM of 3(t-2)and 6(t-2) is it 18(t-2)
*October 27, 2011 by Katie*

**Help**

Find the LCM t^3+8t^2+16,t^2-8t
*October 28, 2011 by Katie*

**algebra 1**

LCM of 15 c^2b^6, 5c^6b^4, 6c^7b^3
*May 20, 2012 by kathy*

**algebra**

LCM of 15 c^2b^6, 5c^6b^4, 6c^7b^3
*May 20, 2012 by kathy*

**Math**

What is the lcm for 5,15, and 24?
*August 26, 2012 by Losa*

**math**

what is the lcm of 24 and 48
*September 20, 2012 by connie*

**Math**

Is the LCM of 6 and 8 =2
*October 28, 2014 by Amy*

**math**

How do you find the LCM of 3 and 7?
*March 30, 2008 by Anonymous*

**Math**

Find the LCM of 12,24, and 30
*July 23, 2008 by Nathaniel*

**algebra**

Is the LCM for xy, y3 = x3y3, y3
*September 4, 2008 by Jake*

**math**

find the LCM of 30 and 65.
*September 27, 2008 by brandy*

**Algebra II**

Find the LCM of f(x) = 4(x - 1)^2 (x^2 + 6x + 5) and g(x) = 10(x - 1) (x + 2) * (x^2 + 7x + 10)
*May 24, 2009 by maddie*

**math**

what is the lcm of 8,62,160
*January 19, 2010 by Michael*

**math**

find the LCM of 11(t-7) and 77(t-7)
*March 9, 2010 by jen*

**6th grade**

what is the LCM of 8,and 19
*March 25, 2010 by dj*

**math**

what is the GCF and LCM of 36 and 84
*May 16, 2010 by joey*

**5th grade**

what is the lcm of 15,25
*October 12, 2010 by katria*

**Math**

What is the LCM of 3(t-7) and 21(t-7)? I am struggling with this!
*December 27, 2010 by Jamie*

**Algebra**

(7+2t),(49-4t^2),(7-2t) find the LCM
*March 13, 2011 by Xaphan*

**MATH**

Find LCM t^3+8t^2+16,t^2-8t
*October 26, 2011 by KATIE A*

**math**

LCM of (2+9u),(4-81u^2)and (2-9u)
*December 17, 2011 by Ashley A.*

**Algebra**

find the LCM of y^2+6y+9 and y^2+y-6
*January 20, 2012 by Rob*

**algebra**

find the LCM of 11(z-3)and 33(z-3)
*January 20, 2012 by Rob*

**algebra**

t^3+6t^2+9t,t^2-6t find Lcm
*May 31, 2012 by Randy*

**math**

Whats the lcm of 32 40 and 49
*November 3, 2012 by tt*

**math**

what is the lcm of 11 5 and 4 please help
*December 13, 2012 by casey*

**algebra**

(8+9x), (64-81x^2), (8-9x) LCM is
*September 26, 2013 by kelley*

**maths**

Lcm for 2/3,4/9,8/15 numbers
*February 12, 2014 by raghava*

**Math**

Find the LCM of: 72 and 99 72 and 54
*February 22, 2014 by Sandy*

**Algebra**

O.k. this is similar to the other one I posted. There is a technique in my book how to solve similar ones but the examples aren't so good, so I have no clue were to even start. 1-(1/x)-(12/x^2) ----------------divide top by bottom 1+(6/x)+(9/x^2) Here are some of my questions...
*July 21, 2007 by Sara*

**Maths**

Runner A speed 1km/hour Runner B speed 2km/hour They start of at the same point at the oval.In a lap that is 500m, how many times will they meet at the starting point after 10 hours. I managed to get the LCM for runner A,B using the time taken to complete 1 lap A=1/2 hrs, B=1/...
*February 11, 2015 by Sandy*

**Math**

I can't find the LCM of 30 and 48. Help please!!
*September 18, 2007 by Heather*