Помогите пожалуйста 7 1/3 : 1 2/9-0,8 / 1,8*7/9+1,2

Question

Помогите пожалуйста 7 1/3 : 1 2/9-0,8 / 1,8*7/9+1,2

Answer 1

7 1/3 = 22/3
0.8 = 8/10 = 4/5
1 2/9 = 11/9
1.8 = 1 8/10 = 1 4/5
1.2 = 1 2/10= 1 1/5
22/3 : 11/9 - 4/5 : 1 4/5 + 7/9 + 1 1/5 = 6 - 4/9 + 7/9 + 6/5 = 5 9/9 - 4/9 = 5 5/9 + 7/9 = 5 12/9 + 6/5 = 57/9 + 6/5 = 285/45 + 54/45 = 339/45 = 7 4/45
22/3 :11/9 = 6
4/5 : 1 4/5 = 4/5 : 9/5 = 4/9