Пошаговое объяснение:
1/8 + 4/15 = 15/120 + 32/120 = 47/120
5/14 - 2/7 = 5/14 - 4/14 = 1/14
11/20 - 1/2 = 11/20 - 10/20 = 1/20
3/5 + 9/10 = 6/10 + 9/10 = 15/10 = 3/2 =
1. 1/2
Пошаговое объяснение:
1/8 + 4/15 = 15/120 + 32/120 = 47/120
5/14 - 2/7 = 5/14 - 4/14 = 1/14
11/20 - 1/2 = 11/20 - 10/20 = 1/20
3/5 + 9/10 = 6/10 + 9/10 = 15/10 = 3/2 =
1. 1/2