Пошаговое объяснение:
1) 15 2/15 - 7 1/12 = 8 2/60 = 8 1/30
2) 15 2/15 - 7 1/12 = 8 2/60 = 8 1/30
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Пошаговое объяснение:
1) 15 2/15 - 7 1/12 = 8 2/60 = 8 1/30
2) 15 2/15 - 7 1/12 = 8 2/60 = 8 1/30