Which one of the following pairs of numbers contains like fractions?
A5/4 and 4/5
B1/2 and 3/2
C6/7 and 60/70
D4/8 and 12/16
A5/4 and 4/5
B1/2 and 3/2
C6/7 and 60/70
D4/8 and 12/16