Which one of the following pairs of numbers contains like fractions?

a. 5/4 and 4/5

B. 1/2 and 3/2

c. 6/7 and 60/70

d. 4/8 and 12/16

B. 1/2 and 3/2 is the pair of numbers that contains like fractions.

Like fractions are fractions that have the same denominator. 1/2 and 3/2 has 2 as the common denominator. Thus, both are like fractions.

5/4 is the reciprocal of 4/5.

6/7 is the simplified form of 60/70

4/8 and 12/16 are fractions that has no relationship with each other. 4/8 can be simplified to 1/2 and 12/16 can be simplified to 3/4.