Ответ:
Пошаговое объяснение:
1 - 1/4 = 4/4 - 1/4 = 3/4
1 - 1/7 = 7/7 - 1/7 = 6/7
1 - 2/9 = 9/9 - 2/9 = 7/9
1 - 5/11 = 11/11 - 5/11 = 6/11
2 - 1/5 = 1 5/5 - 1/5 = 1 4/5
6 - 1/6 = 5 6/6 - 1/6 = 5 5/6
4 - 3/4 = 3 4/4 - 3/4 = 3 1/4
3 - 4/7 = 2 7/7 - 4/7 = 2 3/7