Question

ПОМОГИТЕ СРОЧНО
б) (3 ⅑) • 7/15 : 1 1/27
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Answer 1

Ответ:

Пошаговое объяснение:

б)

1) 3 1/9 * 7/15 = 28/9 * 7/15 = (28*7)/(9*15) = 196/135

2) 196/135 : 1 1/27 = 196/135 : 28/27= 196/135 * 27/28 = 7/5 * 1/1 = 7/5 = 1 2/5

в)

1) 10 - 5 2/3 = 9 3/3 - 5 2/3 = 4 1/3

2) 4 1/3 - 8,5 = 4 1/3 - 8 1/2 = 4 2/6 - 8 3/6 = -4 1/6

3) -4 2/9 + 5 5/18 = -4 4/18 + 5 5/18 = 1 1/18

4) -4 1/6 : 1 1/18 = -25/6 : 19/18 = -25/6 * 18/19 = -25/1 * 3/19 = -75/19 = -3 18/19