algebra

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1. Maths

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

2. math

   find each sum or difference 1. -1/2 + 1/3 1. -1/6 2. -1/3 3. 2/3 4. 1/6 I got 2/3 because I added the 2 numerators and got 2 then I kept the LCM as the denominator so I got 2/3. 2. -3 1/5 + -6 1/2 1. -3 2/7 2. -3 7/10 3. -9 2/7 4.

3. Mathematics

   1. Find the LCM of the given numbers. (10, 25) A. 5 B. 10 C. 25 D. 50 2. Find the LCM of the given numbers. (24, 36) A. 36 B. 72 C. 144 D. 864 3. Find the LCM of the given numbers. (7, 14) A. 14 B. 28 C. 42 D. 56 4. Dominick is in

4. Math

   Use prime factorization to find the LCM of 30 and 40.

1. 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.

2. Maths

   If the GCF (x, 36) is 4 and LCM (x, 36) is 288, then find the number x.

3. 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. 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.

1. math

   Find the LCM for the given numbers using prime factorization. 8) 56 and 96

2. mathematics

   Suppose LCM(a,b) = 20160, a=60. Find the smallest possible value of b.

3. 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

4. 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

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