Question

(1/6-5/9)*(1/2-3/7)*7 1/5
срочно помогите
по действиям только

Answer 1

Ответ:

-1/5

Пошаговое объяснение:

(1/6-5/9)*(1/2-3/7)*7 1/5 = -1/5

1. 1/6 - 5/9 = 3/18 - 10/18 = -7/18

2. 1/2 - 3/7 = 7/14 - 6/14 = 1/14

3. -7/18 * 1/14 = -1/36

4. -1/36 * 7 1/5 = -1/36 * 36/5 = -1/5

Answer 2

$( \frac{1}{6} - \frac{5}{9} ) \times ( \frac{1}{2} - \frac{3}{7} ) \times 7 \frac{1}{5} = - \frac{1}{5}$

$1) \frac{1}{6} - \frac{5}{9} = \frac{3}{18} - \frac{10}{18} = - \frac{7}{18}$

$2) \frac{1}{2} - \frac{3}{7} = \frac{7}{14} - \frac{6}{14} = \frac{1}{14}$

$3) - \frac{7}{18} \times \frac{1}{14} = - \frac{1}{36}$

$4) - \frac{1}{36} \times 7 \frac{1}{5} = - \frac{1}{36} \times \frac{36}{5} = - \frac{1}{5}$