13. Which one of the following pairs of numbers contains like fractions?
A. 1/2 and 3/2
B. 5/4 and 4/5
C. 6/7 and 60/70
D. 4/8 and 12/16

16. 4/15 of the 315 members of a book club are male. How many female members are there in the club?
A. 174
B. 84
C. 131
D. 231