Question

найдите разность
a) 1- 1/5
б) 2-1/8
в) 3 5/6
г) 7 3/7​

Answer 1

Ответ:

Пошаговое объяснение:

1)

1 - 1/5 = 5/5 - 1/5 = 4/5

2)

2 - 1/8 = 1. 8/8 - 1/8 = 1. 7/8

3)

3 - 5/6 = 2. 6/6 - 5/6 = 2. 1/6

4)

7 - 3/7 = 6. 7/7 - 3/7 = 6. 4/7

Answer 2

Ответ:

$1 - \frac{1}{5} = \frac{ \times 5}{5} - \frac{1}{5} = \frac{5 - 1}{5} = \frac{4}{5} \\ 2 - \frac{1}{8} = \frac{2 \times 8}{8} - \frac{1}{8} = \frac{16 - 1}{8} = \frac{7}{8} \\ 3 - \frac{5}{6} = \frac{3 \times 6}{6} - \frac{5}{6} = \frac{18 - 5}{6} = \frac{13}{6} = 2 \frac{1}{6} \\ 7 - \frac{3}{7} = \frac{7 \times 7}{7} - \frac{3}{7} = \frac{49 - 3}{7} = \frac{46}{7} = 6 \frac{4}{7}$