Ответ:
Пошаговое объяснение:
1) 1/8 + 1/12 = 3/24 + 2/24 = 5/25
2) 7/9 - 1/7 = 49/63 - 9/63 = 43/63
3) 21/36 - 4/9 = 21/36 - 16/36 = 5/36
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Ответ:
Пошаговое объяснение:
1) 1/8 + 1/12 = 3/24 + 2/24 = 5/25
2) 7/9 - 1/7 = 49/63 - 9/63 = 43/63
3) 21/36 - 4/9 = 21/36 - 16/36 = 5/36