Question

СРОЧНО НУЖНОООООО ПЖ ДАЮ 50 БАЛЛОВ​

Answer 1

Пошаговое объяснение:

4 1/5 : (7/15 * 1/3) = 21/5 : 7/45 = 21/5 * 45/7 =

3/1 * 9/1 = 27/1 = 27

1/3х + 1/4х + 1/8х = 34/45

8/24х + 6/24х + 3/24х = 34/45

17/24х = 34/45

х = 34/45 : 17/24

х = 34/45 * 24/17

х = 2/15 * 8/1

х = 16/15

х = 1 1/15

3 3/4х - 1 2/3 = 2 11/12

3 3/4х = 2 11/12 + 1 2/3

3 3/4х = 2 11/12 + 1 8/12

3 3/4х = 3 19/12

3 3/4х = 4 7/12

15/4х = 55/12

х = 55/12 : 15/4

х = 55/12 * 4/15

х = 11/3 * 1/3

х = 11/9

х = 1 2/9