Question

ПОЖАЛУЙСТА ПОМОГИТЕ!!!!!!

Answer 1

Ответ:

Пошаговое объяснение:

1) 4 11/14 + 1 10/21 = 4 33/42 + 1 20/42 = 5 53/42 = 6 11/42

2) 5 7/12 + 4 9/16 = 5 28/48 + 4 27/48 = 9 55/48 = 10 7/48

3) 13 2/9 - 4 3/5 = 13 10/45 - 4 27/45 = 12 55/45 - 4 27/45 = 8 28/45

4) 10 5/16 - 9 19/24 = 10 15/48 - 9 38/48 = 9 63/48 - 9 38/48 = 25/48

==================

17 1/4 - x = 7 11/12

x = 17 1/4 - 7 11/12

x = 17 3/12 - 7 11/12

x = 16 15/12 - 7 11/12

x = 9 4/12

x = 9 1/3

-----------------

(x - 7 1/6) + 4 7/18 = 5 1/9

x - 7 3/18 + 4 7/18 = 5 2/18

x - 2 14/18 = 5 2/18

x = 5 2/18 + 2 14/18

x = 7 16/18

x = 7 8/9