Answer:
The mixed number fraction 15/3 should be multiplied by the fraction 3/15 to equal the required number 1.
Step-by-step 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
