Ответ:

Пошаговое объяснение:

6/5-7/6=36/30-35/30=1/30

4 1/6:1/30=25/6*30=125

2*1 1/5=2*1,2=2,4

125-2,4=122,6

4 1/6 : (6/5 - 7/6) - 2 * 1 1/5 = 122  3/5
1. 6/5 - 7/6 = (6*6 - 7*5)/(5*6) = 1/30
2. 4 1/6 : 1/30 = 25/6 : 1/30 = 25/6 * 30 = 25 * 5 = 125
3. 2 * 1 1/5 = 2 * 6/5 = 12/5 = 2 2/5
4. 125 - 2 2/5 = 123 - 2/5 = 122 3/5