Ответ:
1) 7-5 1/4=6 4/4 - 5 1/4 = 1 3/4
2) 6 - 4 9/11 = 5 11/11 - 4 9/11 = 1 2/11
3) 12 - 9 3/8 = 11 8/8 - 9 3/8 = 2 5/8
4) 11 - 6 2/3 = 10 3/3 - 6 2/3 = 4 1/3
5) 8 - 3 2/7 = 7 7/7 - 3 2/7 = 4 5/7
6) 5 6/13 - 2 = 3 6/13
7) 9 3/10 - 4 = 5 3/10
8) 2 3/14 -1 = 1 3/14
Пошаговое объяснение: