Question

A rectangle is 1 2/5 in. by 2 1/2 in. What is the rectangle’s perimeter?

Answer 1

b. 7 4/5 in

Explanation:

First, turn 1 2/5 and 2 1/2 into decimals which would be 1.4 and 2.5. Then, multiply 1.4 by 2 and 2.5 by 2 since you have to add up all the sides of the rectangle. Then, add the products to get the perimeter of 7.8 inches. (4/5 = 0.8).