Questions of fractions

In order to add 3/4 and 7/15, which of the following could be the numerator of the fraction equivalent to 7/15?

A=14
B=21
C=28
D=35

thanks

3/4 + 7/15 =
45/60 + 28/60 =
73/60 =

C, 28

3/4 + 7/15 =
45/60 + 28/60 =
73/60
or
1 13/60.

C = 28 is the correct answer.

4*7 = 28
Answer C

c=28

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