How do you find the LCD of 8x , 25y?

1 Answer
MathFact-orials.blogspot.com
May 27, 2016

To find the least common denominator, we look for the smallest number that both numbers can divide into, which is #200xy#

Explanation:

To find the least common denominator, we look for the smallest number that both numbers can divide into. To do that, I like to break the numbers we are working with down into their constituent parts and start from there.

Let's do 8x first.

#8x=2*2*2*x# - so our LCD needs to have 3 "2's" and an x

#25y=5*5*y# - so our LCD also needs to have 2 "5's" and a y

Put the whole thing together to get:

#2*2*2*5*5*x*y=200xy#

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