Question

What is the least common denominator of 1/4 and 2/5?

Answer 1

1/4 = 1/4 × 5/5 = 5/20

2/5 = 2/5 × 4/4 = 8/20

Therefore, the LCD is 20

Explanation:

Answer 2

20

Explanation:

because 4 can go into 20 5 times without a remainder