# lcm

354 results

### 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.

### Math

Find the LCM and GCF of the following numbers: 1) 2016 and 756 2) 10140 and 705551 3) 17 664 and 288 4) 3960, 150 and 495 I believe the answers are: 1) LCM = 6048 GCF = 252 2) LCM = 7 154 287 140 GCF = 1 3) LCM = 52 992 GCF = 2208 4) LCM = 19 800 GCF = 15

### 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

### 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.

### 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

### 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...

### 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

### 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

### 5th grade

if u have the lcm how do u find the numbers that make the lcm

### math

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

### 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

### Math..LCM

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

### math, algebra

Can someone check this for me : Find the gcf for each of the 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 ...

### 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?

### 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

### 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

### Math

IF the LCM of two numbers a and b is 40, what is the LCM of 7a^2 and 7b^2?

### Math

if you know the lcm of 4 and 5, how could you find the lcm of 40 and 50

### 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.

### 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 ...

### 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 ...

### 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

### math, correction

Find the LCM for 4 and 20 My answer is: LCM IS 20 Your answer is right

### Algebra

Find the LCM of (7+9u), (49-81u^2), and (7-9u) Find the LCM of 15x^8 and 75x^8

### 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 ...

### 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.

### 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

### 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 ...

### 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 ...

### Math

If you want to add 2/3 and 3/5, you will find the LCM of the denominators then divide the LCM of the denominators and multiply it with the numerators then add it...

### 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 ...

### Algebra

LCM of 3(t-2) and 6(t-2) IS the LCM 18(t-2)

### math

what's the LCM of 45 and 20? what's the LCM of 6 and 50?

### Math LCM

What is the LCM of 8, 11, 36, 80?

### find the LCM

Lcm of 2b, 6c

### 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....

### math

How do u find the lcm v^3+4v^+4v, v^2-4z the lcm is ___(__)^2 (v-___)

### maths

if the LCM of first 20 natural numbers is X, then what will be the LCM of first 25 natral numbers

### 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 ...

### Maths

If the lcm of first 20 natural no. is x then find the lcm of first 25 natural no.

### Math

Find the LCM of 12 and 15 Find the LCM of 16 and 20

### math double check please

GCF and LCM of 252, 420, and 180 252: 2,2,3,3,7 420: 2,2,3,5,7 180: 2,2,3,3,5 GCF is 12 and I think LCM is 1260? Can you please tell me if I'm right?

### 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!

### 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 ...

### 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.

### 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...

### 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...

### 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 don't 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 ...

### 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 ...

### 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...

### 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

### math

LCM of 10a and 15a^2 Factors of 10a are 10,a,2,5 but the prime factors are 2,5,a Factors of 15a^2 are 15,a^2, 3,5,a,a Prime factors are 3,5,a,a Common between two are 5 and a So is the LCM of 10a and 15^2 5a?

### 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 personsâ€™ ages. Show your work listed by name and age. ...

### 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 = ______________. ...

### math

How do I do the LCM?

### Math

What is the LCM of 25 and 10

### MATH

WHAT ARE THE LCM OF 16 AND 20

### math

what is the LCM of 14 and 21?

### Math

LCM of (x-y) and 2(y-x)

### math

so the LCM for 4 and 20 is 20

### math

what is the lcm of 9,7,2

### 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

### math

lcm of 22 5 and 24

### math

LCM OF 35,12,20

### MATH

What is the LCM of 1. 9, 12, and 20 2. 9, 21, and 63 3. 10, 20, and 45 THANK YOU!!!!!!!!!!!!

### math

what is the LCM for 16 and 24

### math

what is the LCM 10 and 35

### Algebra 1

what's the LCM of: 2r-1 , r+4

### math

LCM of 2t, (t-2) and t(t-2)

### math

what is the LCM of 8 12 and 5

### mATH

what are the LCM of 8 and 20

### math

what is the lcm of 16 and 30

### algebra

LCM of 14, 40, and 36

### math

Lcm of 2 and 3

### Help

Find the LCM of 3(t-2)and 6(t-2) is it 18(t-2)

### Help

Find the LCM t^3+8t^2+16,t^2-8t

### algebra 1

LCM of 15 c^2b^6, 5c^6b^4, 6c^7b^3

### algebra

LCM of 15 c^2b^6, 5c^6b^4, 6c^7b^3

### Math

What is the lcm for 5,15, and 24?

### math

what is the lcm of 24 and 48

### Math

Is the LCM of 6 and 8 =2

### Math

What is a lcm

### math

How do you find the LCM of 3 and 7?

### Math

Find the LCM of 12,24, and 30

### algebra

Is the LCM for xy, y3 = x3y3, y3

### math

find the LCM of 30 and 65.

### 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)

### math

what is the lcm of 8,62,160

### math

find the LCM of 11(t-7) and 77(t-7)

### 6th grade

what is the LCM of 8,and 19

### math

what is the GCF and LCM of 36 and 84

### 5th grade

what is the lcm of 15,25

### Math

What is the LCM of 3(t-7) and 21(t-7)? I am struggling with this!

### Algebra

(7+2t),(49-4t^2),(7-2t) find the LCM

### MATH

Find LCM t^3+8t^2+16,t^2-8t

### math

LCM of (2+9u),(4-81u^2)and (2-9u)

### Algebra

find the LCM of y^2+6y+9 and y^2+y-6

### algebra

find the LCM of 11(z-3)and 33(z-3)

### algebra

t^3+6t^2+9t,t^2-6t find Lcm