Question

Wayne has a recipe on 3 inch by 5 inch index card that he wants to enlarge to 15 inches long. how wide will the enlargements be?

Answer 1

Explanation:

Multiply by 5 both denominator and numerator

Answer 2

3/x = 5/15

5x = 3(15)

5x = 45

x = 45/5

x = 9

The width should be 9 inches wide.