Пошаговое объяснение:
1)29/67-15/67 = 14/67
2)17/35+18/35 = 35/35 = 1
3)9-31/39 = 8 39/39 - 31/39 = 8 8/39
4)7-12/15 = 6 15/15 - 12/15 = 6 3/15 = 6 1/5
5)5 3/5+1 2/5 = 6 5/5 = 7
6)4 5/12+ 1 1/12 = 5 6/12 = 5 1/2
Пошаговое объяснение:
1)29/67-15/67 = 14/67
2)17/35+18/35 = 35/35 = 1
3)9-31/39 = 8 39/39 - 31/39 = 8 8/39
4)7-12/15 = 6 15/15 - 12/15 = 6 3/15 = 6 1/5
5)5 3/5+1 2/5 = 6 5/5 = 7
6)4 5/12+ 1 1/12 = 5 6/12 = 5 1/2