How do you find the LCM of 20/30?

1 Answer
Dec 8, 2016

The answer is #60#.


To solve this, I used my head, but if you were to use extremely high numbers, what you could try is multiplying the two numbers together.

For this case, that is #600#. Then, you find the GCF of the two numbers. In this case, that would be #10#. You take the product and divide it by the GCF. This will yield

#600/10 = 60#

and that's your answer.