Question

What number should the fraction 15/3 be mutiplied by in order to equal 1?

Answer 1

The mixed number fraction 15/3 should be multiplied by the fraction 3/15 to equal the required number 1.

Explanation:

nr=1 the product of a number and its reciprocal is one. In this case:

(15/3)r=1 multiply both sides by 3

15r=3 divide both sides by 15

r=3/15

r=1/5