Ответ:

Пошаговое объяснение:

1.

1) 6. 5/17 + 1. 12/17 =

7. 17/17 = 8

2) 23 : 8 = 23/8 = 2. 7/8

3) 4. 2/5 - 2. 3/5 =

3. 7/5 - 2. 3/5 = 1. 4/5

4) 1. 4/5 : 5 = 9/5 : 5 =

9/5 * 1/5 = 9/25

5) 2. 7/8 - 9/25 =

2. 175/200 - 72/200 =

2. 103/200

2.

1) 7. 4/13 - 4. 4/13 = 3

2) 3 : 0,15 = 20

3) 13. 6/13 + 11. 7/13 =

24. 13/13 = 25

4) 4 : 25 = 0,16

5) 20 - 0,16 = 19,84