Solve the following mixed fraction

9(3/4)+ 7(2/12)-9(1/15)

= 9+3/4+7+2/17-9-1/15

= (9+7-9) + (3/4+2/17-1/15)
= 7+(765+120-68/1020)
= 7+ (885 - 68)/1020
= 7 + 817/1020
=7(817/1020)