Question

Find the LCD for the following pair of fractions.

1/8
and
7/9
The least common denominator is

Answer 1

The least common denominator is 72.

Explanation:

8 = 2³

9 = 3²

Since the two denominators have no common factors, the LCD is their product.

LCD = 8 × 9 = 72

The least common denominator is 72.