A few days ago
Jenn H

Math help please?

Could anyone please help on these questions??

1. Look at the two monomials what is the least common multiple?

36x^4y^3

20xy^3

A) 4x^4y^3

B) 180x^4y^3

C) 180xy^3

D) 4xy^3

2. Look at the two monomials what is the least common multiple?

12uv^4w^3

20uvw^2

A) 4uv^4w^3

B) 60uvw^3

C) 4uvw^2

D) 60uv^4w^3

3.. Look at the two monomials what is the least common muliple?

12xy to the power of 4

20x^2^y2 z

A) 4xy^2

B) 60xy^2

C) 4x^2y^4

D) 60x^2y^4z

Top 1 Answers
A few days ago
Kia

Favorite Answer

1)

36x^4y^3 = 2^2 * 3^2 * x^4 * y^3

20xy^3 = 2^2 * 5 * x * y^3

LCM = 2^2 * 5 * 3^2 * x^4 * y^3 = 180x^4y^3

So your answer is B

2)

12uv^4w^3 = 3 * 2^2 * u * v^4 * w^3

20uvw^2 = 5 * 2^2 * u * v * w^2

LCM = 3 * 5 * 2^2 * u * v^4 * w^3 = 60uv^4w^3

So your answer is D

3)

12xy^4 = 3 * 2^2 * x * y^4

20x^2y^2z = 5 * 2^2 * x^2 * y^2 * z

LCM = 3 * 5 * 2^2 * x^2 * y^4 * z = 60x^2y^4z

So your answer is D

Basically, to find the least common multiple, break each term to its most simplified form, then from the two terms, pick all the unique parts with the highest power.

I hope this helped

Kia

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