Question

помогите пожалуйста!!​

Answer 1

Ответ:

Пошаговое объяснение:

1) 9/11 + 5/11 = 14/11 = 1 3/11

2) 4/15 + 11/15 = 15/15 = 1

4) 3/10 + 7/20 = 6/20 + 7/20 = 13/20

5) 7/8 + 3/5 = 35/40 + 24/40 = 59/40 = 1 19/40

6) 9/28 + 4/35 = 45/140 + 16/140 = 61/140

7) 5/26 + 11/39 = 15/78 + 22/78 = 37/78

8) 16/24 + 25/75 (СОКРАЩАЕМ) = 2/3 + 1/25 = 50/75 + 3/75 = 53/75

9) 1/60 + 2/80 = 4/240 + 6/240 = 10/240 = 1/24

10) 9/5 + 5/9 = 45/45 + 45/45 = 90/45 = 2