Пошаговое объяснение:
9/40 : 13/50 = 9/40 * 50/13 = 9/4 * 5/13 = 45/52 =
45 : 52
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Пошаговое объяснение:
9/40 : 13/50 = 9/40 * 50/13 = 9/4 * 5/13 = 45/52 =
45 : 52