Question

Предварительно сократив дроби, найдите значение выражения:
i need help pls​

Answer 1

Ответ:

Пошаговое объяснение:

1) 3/12 + 25/30 = 1/4 + 5/6 = 3/12 + 10/12 = 13/12 = 1. 1/12

2) 10/24 - 21/54 = 5/12 - 7/18 = 15/36 - 14/36 = 1/36

3) 30/54 + 22/30 = 5/9 + 11/15 = 25/45 + 33/45 = 58/45 = 1. 13/45

4) 28/40 - 10/75 = 7/10 - 2/15 = 21/30 - 4/30 = 17/30

5) 12/27 + 14/21 = 4/9 + 2/3 = 4/9 + 6/9 = 10/9 = 1. 1/9

6) 14/24 - 15/40 = 7/12 - 3/8 = 14/24 - 9/24 = 5/24

7) 12/18 - 5/60 = 2/3 - 1/12 = 8/12 - 1/12 = 7/12

8) 4/24 + 3/36 = 1/6 + 1/12 = 2/12 + 1/12 = 3/12 = 1/4