Question

What is the area of a square that has a side length of 1/5 of an inch?

Answer 1

1/5 is 0.2 inches. 0.2 * 0.2 is 0.04 inches, AKA 1/25 of an inch.
(you could just square the bottom number of the fraction 1/5 for an easy way ;))

Answer 2

0.04 inches squared - because it's 0.2 inches squared.

This can also be written as 1/25 inches squared