Question

помогите пожалуйста с уроками дам очень много баллов ​

Answer 1

Ответ:

Отмет как лучший пж. Я старался.

Answer 2

Ответ:

Пошаговое объяснение:

1.

1) 2/7 + 5/21 = 6/21 + 5/21 = 11/21

2) 11/21 : 1. 4/7 = 11/21 : 11/7 = 11/21 * 7/11 = 7/21 = 1/3

2.

1) 8/11 + 3/22 = 16/22 + 3/22 = 19/22

2) 19/22 : 5/11 = 19/22 * 11/5 = 19/2 * 1/5 = 19/10 = 1. 9/10

3.

1) 3/8 + 5/12 = 9/24 + 10/24 = 19/24

2) 1. 7/12 : 19/24 = 19/12 * 24/19 = 24/12 = 2

4.

1) 7/12 - 5/9 = 21/36 - 20/36 = 1/36

2) 17/36 : 1/36 = 17/36 * 36/1 = 17/1 = 17

5.

1) 3/14 + 5/7 = 3/14 + 10/14 = 13/14

2) 13/14 : 3. 5/7 = 13/14 : 26/7 = 13/14 * 7/26 = 1/2 * 1/2 = 1/4

6.

1) 3/16 + 5/24 = 9/48 + 10/48 = 19/48

2) 19/24 : 19/48 = 19/24 * 48/19 = 48/24 = 2