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

Question

a) 1/4, 1/8

b)1/6, 1/18

Answer 1

Do it the same way I showed you before.

Answer 2

They said it's prime numbers though?

Answer 3

http://www.mathsisfun.com/prime-factorization.html

4 = 2 * 2

8 = 2 * 2 * 2

8 is the LCD

Answer 4

Thank You !

Answer 5

You're welcome.