Question

помогите пж: выполните действие.
1)5/7+5/14 4) 4 3/25∙2 7/12
2)23/24-7/8 5) 11/13∙26/44
3)4/15:8/25 6) 6 7/14:2 5/6

Answer 1

Ответ:

1)  1 1/14

2)  1/12

3)  5/6

4)  3193/300

5)  1/2

6)  2 5/17

Пошаговое объяснение:

1) 5/7+5/14 = (5*2+5)/14 = 15/14 = 1 1/14

2) 23/24-7/8  = (23-7*3)/24 = 2/24 = 1/12

3) 4/15:8/25  = 4/15 * 25/8 = 5/6

4) 4 3/25∙2 7/12  = 103/25 * 31/12 = 3193/300

5) 11/13∙26/44  = 2/4 = 1/2

6) 6 7/14:2 5/6 = 91/14 : 17/6 = 91/14 * 6/17 = 273/119 = 2 5/17

Answer 2

Ответ:

Пошаговое объяснение:

1) = 10/14 + 5/14 = 15/14 =

1 1/14

2) = 23/24 - 21/24 = 2/24 = 1/12

3) = 4/15 * 25/8 = 1/3 * 5/2 = 5/6

4) = 103/25 * 31/12 = 3193/300 = 10 193/300

5) = 1/1 * 2/4 = 2/4 = 1/2

6) = 91/14 * 6/17 = 91/7 * 3/17 = 273/119 = 2 35/119