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Автор - Michaelzzz

36/25 : (-0,3)             3/14 :(-3,7+40/7)       (0,6-4,7):(2 1/7 -3 4/9)  С решением 

Ответ

Проверено экспертом

Автор - prettypushkova


№ 1. 36/25 : (-0,3) = - 4,8

36/25 : (-3/10) = 36/25 * (-10/3) = (-120/25) = - 4,8

№ 2. 3/14 : (-3,7 + 40/7) = 5/47

1) -37/10 + 40/7 = (-259/70 + 400/70) = 141/70

2) 3/14 : 141/70 = 3/14 * 70/141 = 5/47

№ 3. (0,6 - 4,7) : (2 1/7 - 3 4/9) = 3,15

1) 0,6 - 4,7 = -4,1

2) 15/7 - 31/9 = 135/63 - 217/63 = -82/63

3) -4,1 : (-82/63) = -41/10 * (-63/82) = 63/20 = 3,15

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