Ответы
Ответ дал:
1
Пошаговое объяснение:
3/7 + 4/9 = 27/63 + 28/63 = 55/63
11/15 + 12/30 = 23/30 + 12/30 = 35/30 = 7/6 = 1. 1/6
8/12 + 7/15 = 40/60 + 28/60 = 68/60 = 1 8/60 = 1 2/15
3/5 + 5/9 = 27/45 + 25/45 = 52/45 = 1 7/45
6/7 + 8/10 = 60/70 + 56/70 = 116/70 = 1 46/70 = 1 23/35
15/18 + 4/6 = 15/18 + 12/18 = 27/18 = 3/2 = 1 1/2
3/11 + 5/22 = 6/22 + 5/22 = 11/22 = 1/2
16/21 + 3/7 = 16/21 + 9/21 = 25/21 = 1 4/21
1/5 + 2/3 = 3/15 + 10/15 = 13/15
17/20 + 13/30 = 51/60 + 26/60 = 77/60 = 1 17/60
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