Question

Дам 50 баллов !!!!
С решениями !!!!
Срочно !!!!
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Answer 1

Ответ:

Пошаговое объяснение:

1) 48 * 7/12 = 4*7/1 = 28/1 = 28

2) 13/17 * 85 = 13*5/1 = 65/1 = 65

3) 32/49 * 7/8 = 4/7 * 1/1 = 4/7

4) 2 7/8 * 1 1/23 = 23/8 * 24/23 = 24/8 = 3

5) 3 6/7 : 2 4/7 = 27/7 : 18/7 = 27/7 * 7/18 = 27/18 = 3/2 = 1 1/2 = 1,5

6) 27/49 : 18/35 = 27/49 * 35/18 = 3/7 * 5/2 = 15/14 =

1 1/14

7)

(26/9 : 13/9 - 2/3) * х = 1

(26/9 * 9/13 - 2/3) * х = 1

(26/13 - 2/3) * х = 1

(2 - 2/3) * х = 1

(1 3/3 - 2/3) * х = 1

1 1/3 * х = 1

х = 1 : 1 1/3

х = 1 : 4/3

х = 1 * 3/4

х = 3/4 или 0,75

8)

32 : 3 1/5 = 32 : 16/5 = 32 * 5/16 = 2*5 / 1 = 10/1 = 10 см - длина прямоугольника