решение:

-3,8:(2 3/7 + 3/7•(-2,5))-2 19/95 = -19/5:(17/7+3/7•(-5/2))- 209/95 = -19/5:(17/7 - 15/14)-209/95 = -19/5:19/14-209/95 = -1/5•14-209/95 = -5.

ответ:

-5.

Verified answer

Ответ:

-5

Пошаговое объяснение:

1) 3/7 * (-2,5) = 3/7 * (-25/10) = -75/70 = -15/14 = -1. 1/14

2) 2. 3/7 + (-1. 1/14) = 2. 3/7 - 1. 1/14 = 2. 6/14 - 1. 1/14 = 1. 5/14

3) -3,8 : 1. 5/14 = -38/10 : 19/14 = -38/10 * 14/19 = -2/5 * 7/1 = -14/5 = -2. 4/5

4) -2. 4/5 - 2. 19/95 = -2. 76/95 - 2. 19/95 = -4. 95/95 = -5