Question

помогите пожалуста ​

Answer 1

Пошаговое объяснение:

1) 1-7/12= 12/12 - 7/12=5/12

2) 8- 3/5= 7 +5/5 -3/5= 7+ 2/5= 7 2/5

3) 13 3/5 - 6 = 13 -6 +3/5= 7 3/5

4) 12- 4 3/4= 11 +4/4 - 4 3/4= 7 1/4

5) 10 1/2 -4 5/14= 10 7/14 - 4 5/14 = 6 3 /14

6) 5 3/8 -3 5/6 = 5 9/24 - 3 20 / 24= 4 33/24 - -3 20 /24= 1 13/24

7) 28 5/8 + 23 3/8= 51 + 8/8= 51+1=52

8) 2 1/7 + 3 3/8= 2 8/56 + 3 21/56=5 29/56

9) 2 1/7+ 3 3/2 + 4 5/21= 2 3/21 +4 5/21 + 3 3/2= 6 8/21 +3 3/2= 6 16/42 + 3 61/42=9 77/42= 9 + 1 35/42=10 35/42= 10 5/6

10) 12 7/12 + 3 8/9 - 4 3/4= 12 21/36 +3 32/36- 4 27/36= 15 53/36 - 4 27/36= 9 26/36= 9 13/18 .