Question

5/6+2/7
11/15-3/5
7/12-3/8
3/20+7/15
13/16-7/12
9/14+2/2​

Answer 1

Ответ:

5/6+2/7=1 5/42

11/15-3/5=2/15

7/12-3/8=1/4

3/20+7/15=37/60

13/16-7/12=11/48

9/14+2/2=1 9/14

Пошаговое объяснение:

5/6 + 2/7 общий знам. 42

35/42 + 12/42 = 47/42 = 1 5/42

11/15 - 3/5 общий знам. 15

11/15 - 9/15 = 2/15

7/12 - 3/8 = общий знам. 24

14/24 - 8/24 = 6/24 = 1/4

3/20 + 7/15 общий знам. 60

9/60 + 28/60 = 37/60

13/16 - 7/12 общий знам. 48

39/48 - 28/48 = 11/48

9/14 + 2/2 общий знам. 14

9/14 + 14/14 = 23/14 = 1 9/14

Answer 2

Пошаговое объяснение:

5/6 + 2/7 = 35/42 + 12/42 = 47/42 = 1 5/42

11/15 - 3/5 = 11/15 - 9/15 = 2/15

7/12 - 3/8 = 14/24 - 9/24 = 5/24

3/20 + 7/15 = 9/60 + 28/60 = 37/60

13/16 - 7/12 = 39/48 - 28/48 = 11/48

9/14 + 2/2 = 9/14 + 1 = 1 9/14