Question

Помогите это решить я не могу

Answer 1

1)1-2/5=5-2/5=3/5

2)1-7/12=12-7/12=5/12

3)1-1/10=10-1/10=9/10

4)1-8/10=10-8/10=2/10=1/5

5)1-23/56=56-23/56=33/56

6)1-2/2=0

7)1-90/100=100-90/100=10/100=1/10

8)1-3/4=4-3/4=1/4

Answer 2

Ответ:

$1) \: 1 - \frac{2}{5} = \frac{5 - 2}{5} = \frac{3}{5} \\ 2) \: 1 - \frac{7}{12} = \frac{12 - 7}{12} = \frac{5}{12} \\ 3) \: 1 - \frac{1}{10} = \frac{10 - 1}{10} = \frac{9}{10} \\ 4) \: 1 - \frac{8}{10} = \frac{10 - 8}{10} = \frac{2}{10} = \frac{1}{5} \\ 5) \: 1 - \frac{23}{56} = \frac{56 - 23}{56} = \frac{33}{56} \\ 6) \: 1 - \frac{2}{2} = 1 - 1 = 0 \\ 7) \: 1 - \frac{90}{100} = \frac{100 - 90}{100} = \frac{10}{100} = \frac{1}{10 } \\ 8) \: 1 - \frac{3}{4} = \frac{4 - 3}{4} = \frac{1}{4}$