Question

терміново даю максимум баліа​

Answer 1

Ответ:

1) 1/10 +1/5 = 1/10 + 2/10 = 3/10

2) 2/7 + 1/3 = 6/21 + 7/21 = 13/21

3) 1/3 + 1/2 = 2/6 + 3/6 = 5/6

4) 3/4 - 2/9 = 27/36 - 8-36 = 19/36

5) 1/4 + 5/6 = 3/13 + 10/12 = 13/12 = 1 1/12

6) 5/8 - 1/6 = 15/24 - 4/24 = 11/24

7) 4 - 6/13 = 52/13 - 6/13 = 46/13

8) 8 - 3 2/5 = 8 - 17/5 = 40/5 - 17/5 = 23/5

9) 3/4 - 3/10 = 15/20 - 6/20 = 9/20

10) 5/12 - 7/18 = 15/36 - 14/36 = 1/36

11) 6/21 - 3/14 + 2/7 = 2/7 - 3/14 + 2/7 = 4/7 - 3/14 = 8/14 - 3/14 = 5/14

12) 1/2 - (3/5 - 1/6) = 1/2 - 13/30 = 1/15