Question

548. Найдите неизвестный член отношения. 1)×:11 3/7=1 1/20, 2)×:7 5/9 = 27/34, 3)×:4 3/4 = 2 3/19, 4) 9 2/7: ×=1 6/7,
5)10 2/13:×=1 7/26, 6) 12 1/7 : ×= 2 3/7. Решите поэтапно!!!! ​

Answer 1

Ответ:

1) x : 11 3/7 = 1 1/10

x : 80/7 = 11/10

x = 11/10 • 80/7 = 88/7 = 12 3/7

2) x : 7 5/9 = 27/34

x : 68/9 = 27/34

x = 27/34 • 68/9

x = 6

3) x : 4 3/4 = 2 3/19

x : 19/4 = 41/19

x = 41/19 • 19/4

x = 41/4 = 10 1/4

4) 9 2/7 : x = 1 6/7

65/7 : x = 13/7

x = 65/7 : 13/7

x = 65/7 • 7/13

x = 5

5) 10 2/13 : x = 1 7/26

132/13 : x = 33/26

x = 132/13 : 33/26

x = 132/13 • 26/33

x = 8

6) 12 1/7 : x = 2 3/7

85/7 : x = 17/7

x = 85/7 : 17/7

x = 85/7 • 7/17

x = 5