2) 4 3/34.
3 15/17 + 7/34 = 66/17 + 7/34 = 139/34 = 4 3/34.
3) 1 7/11.
3 - 1 4/11 = 3 - 15/11 = 18/11 = 1 7/11.
4) 5 23/42.
7 5/6 - 2 4/14 = (7 - 2) + (5/6 - 4/14) = 5 + 23/42 = 5 23/42.
Пошаговое объяснение:
2) 4 3/34.
3 15/17 + 7/34 = 66/17 + 7/34 = 139/34 = 4 3/34.
3) 1 7/11.
3 - 1 4/11 = 3 - 15/11 = 18/11 = 1 7/11.
4) 5 23/42.
7 5/6 - 2 4/14 = (7 - 2) + (5/6 - 4/14) = 5 + 23/42 = 5 23/42.
Пошаговое объяснение: