Question

The least common denominator of 1/2, 1/6, and 1/9 is:

Answer 1

The LCD is 18.

Explanation:

2 = 2

6 = 2*3

9 = 3 * 3

The Least Common Multiple = 2 * 3* 3 = 18 (because there is 1 pairs of 2's and 1 pair of 3's in the factors, so only 1 of each appear in the calculation).

Answer 2

18

Explanation:

Find the factors of each denominator

2 = 1*2

6 = 2*3

9 = 3*3

The least common multiple is

2*3*3 = 18

The least common denominator is 18