Помгите ! 3целых 1/5×(2целых 1/3: 3,2-3)+9.6

1) 2 1/3 : 3,2 = 7/3 : 16/5 = 35/48
2) 35/48 - 3 = - 2 13/48
3) 3 1/5 • ( - 2 13/48 ) = 16/5 • ( - 109/48 ) = - 109/15 = - 7 4/15
4) - 7 4/15 + 9,6 = - 7 8/30 + 9 18/30 = 2 10/30 = 2 1/3
ответ 2 1/3