Question

Срочно, помогите решить!

Answer 1

А) 6×1/2=3

3-13/6 = 18-13/6 = 5/6

5/6 × 3/1 = 5/2 = 2,5

2,5 + 0,5 = 3

Б) начнём с конца

1/3 + 1/9 = 3+1 / 9 = 4/9

4/9 ÷ 8/9 = 4/9 × 9/8 = 1/2

1/2 - 1/6 = 3-1 / 6 = 2/6 = 1/3

1/3 × 6 = 2

Вставляй с 2 до 4/9

В) 1/3 + 1/6 = 2+1 / 6 = 3/6 = 1/2

1/2 × 4/5 = 2/5

2/5 + 8/5 = 10/5 = 2

2÷8 = 1/4 = 0,25

Г) с конца

1/50 + 1/10 = 1/50 + 5/50 = 6/50 = 3/25

3/25 ÷ 3/8 = 3/25 × 8/3 = 8/25

8/25 - 1/5 = 8/25 - 5/25 = 3/25

3/25 × 8 = 24/25

Д) 5/6 - 2/3 = 5/6 - 4/6 = 1/6

1/6 × 12/13 = 2/13

2/13 + 17/13 = 19/13

19/13 ×1/19 = 1/13