Use prime factors to find the LCD for each pair of fractions.

a) 1/4, 1/8

b)1/6, 1/18

5 answers

Do it the same way I showed you before.
They said it's prime numbers though?
http://www.mathsisfun.com/prime-factorization.html

4 = 2 * 2

8 = 2 * 2 * 2

8 is the LCD
Thank You !
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