Помогите (7/9-1/6):2/9×21/22

Question

Помогите (7/9-1/6):2/9×21/22

Answer 1

1)7/9-1/6=11/18
2)11/18:2/9=11/4
3)11/4 * 21/22=3.5
Ответ:3,5

Answer 2

(7/9-1/6):2/9х21/22=(14-3/18):2/9х21/22=4/18:2/9х21/22=4/18х9/2х21/22=1х21/22=21/22.