Question

437. Вычислите:

пожалуйста
​

Answer 1

Ответ:

Пошаговое объяснение:

Answer 2

Ответ:

1) 1/2 + 4/7 - 3/14 = 7/14 + 8/14 - 3/14 = 12/14 = 6/7

2) 1/5 - 2/15 + 1/30 = 6/30 - 4/30 + 1/30 = 3/30 = 1/10 = 0,1

3) 1/10 + 7/20 - 2/40 = 2/20 + 7/20 - 1/20 = 8/20 = 2/5 = 0,4

4) 17/20 - 3/10 - 11/60 = 51/60 - 18/69 - 11/60 = 22/60 = 11/30

5) 3/20 + 7/10 - 3/40 = 6/40 + 28/40 - 3/40 = 31/40

6) 9/40 + 3/4 - 19/20 = 9/40 + 30/40 - 38/40 = 1/40 = 0,025