find the sum

3 3/15 + 4 2/5

A) 2 1/2

B) 22 4/5

C) 7 3/5

D) 5/38

First you divide 3/3=1 then 3/15=5 then you multiply 3*5=15 then you add the 1 on the top 16/5 then you multiply 4*5=20 add the 2 on the top so now you have 22/5 so now you add 16/5 + 22/5 so you end with 38/5 so now divide 38/5 you end up with 7 3/5.