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Ответ

Ответ дан
NataMon

Ответ:

1.   6 минут в 1/10 часе

2.  45 минут в ¾ часе  

3.  16 = 2/5 числа 40

    40 = ⅔ числа 60 ​

Пошаговое объяснение:

1 час = 60 минут

1. Сколько минут в 1/10 часе?  

60 * 1/10 = 60 * 1 : 10 = 6 (мин.)  в 1/10  часа

2. Сколько минут в ¾ часе?  

60 * 3/4 = 60 * 3 : 4 = 180 : 4 = 45 (мин.)   в 3/4  часа

3.  2/5 числа 40 = 40 * 2/5 = 80/5 = 16

    2/3 числа 60 = 60 * 2/3 = 120/3 = 40

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