Предмет: Математика, автор: Аноним

решение 15целых 2/15 -7целых1/2 =

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Автор ответа: Nastya171167

0

15 2/15 - 7 1/2 = 227/15 - 15/2=(227 × 2 - 15 × 15)/30 = 454/30 - 225/30 = 229/30 = 7 19/30

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