Which fraction is a unit rate you can use to solve a ratio problem

Question

A: 3/4
B: 7/5
C: 27/1
D: 1/27

Answer 1

The correct answer is D: 1/27. In a unit rate, the numerator is always 1, and the denominator represents the quantity being measured. In this case, 1/27 can be used as a unit rate to solve a ratio problem.