Question

Вычислите:
2/$\frac{4}{19}$ + 1$\frac{5}{7}$ * ($\frac{2}{9}$ - 3$\frac{7}{18}$

Answer 1

Ответ:

Пошаговое объяснение:

1) 2/9 - 3. 7/18 = 4/18 - 3. 7/18 =

-3. 3/18 = -3. 1/6

2) 1. 5/7 * (-3. 1/6) = 12/7 * (-19/6) =

2/7 * (-19/1) = -38/7 = -5. 3/7

3) 2 : 4/19 = 2 * 19/4 = 38/4 =

9. 2/4 = 9. 1/2

4) 9. 1/2 + (-5. 3/7) = 9. 1/2 - 5. 3/7 =

9. 7/14 - 5. 6/14 = 4. 1/14