Предмет: Математика, автор: nurali200486

найдите значение выражения

Приложения:

Ответы

Автор ответа: nmilena2006

7 1/2-(9 3/50-5 7/25)

1 действие:

9 3/50-5 7/25

подбераем общий делить это 50

9 3/50-5 14/50=8 53/50-5 14/50=3 39/50

2 действие:

7 1/2-3 39/50

Подбераем общий делить 50

7 25/50-3 39/50=6 75/50-3 39/50 = 3 36/50

сокращаем дробь 3 36/50= 3 18/25

ответ: 3 18/25

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