Question

(7/9-1/6):2/9*21/22=???
помогите пжл, действиями.

Answer 1

1)7/9-1/6=28/36-6/36=22/36=11/18
2)11/18:2/9=11/18*9/2=2 3/4
3)2 3/4*21/21=11/4*21/22=21/8=2 5/8

Answer 2

7/9-1/6=11/18
11/18:2/9=2 3/4
2 3/4*21/22=2 5/8

ответ 2 5/8