Помогите пожалуйста

9-(4 7/12+17/18) 11 2/19-(3 1719+6 14/19)

7/12-дробь

9 - (4 7/12 + 17/18) = 3 17/361) 4 7/12 + 17/18 = 4 21/36 + 34/36 = 4 55/36 = 5 19/362) 9 - 5 19/36 = 3 17/3611 2/19 - (3 17/19 + 6 14/19) = 9/191) 3 17/19 + 6 14/19 = 9 31/19 = 10 12/192) 11 2/19 - 10 12/19 = 10 21/19 - 10 12/19 = 9/19