Question

In mr.Greens music class 3/12 of the students play guitur and 4/12 of the students play the violin the rest play piano what fraction of the students play the piano?
A 8/12
B 9/12
C 7/12
D 5/12

Answer 1

3/12 + 4/12 = 7/12
12/12 - 7/12 = 5/12 <==

Answer 2

The answer is D. 5/12