Пошаговое объяснение:
5/32 * 48 = 5/2 * 3 = 15/2 = 7 1/2
8/51 * 17/20 = 2/3 * 1/5 = 2/15
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Пошаговое объяснение:
5/32 * 48 = 5/2 * 3 = 15/2 = 7 1/2
8/51 * 17/20 = 2/3 * 1/5 = 2/15