Выполните сложение

3 1/3 + 1 3 4/5 + 1 4/5

7 3/4 + 1/4 1 4/9 + 7 7/18

3 1/6 + 1/3 8 3/7 + 1 9/14

1) 4 1/3

2) 8

3) 3 1/2

4) 5 3/5

5) 8 5/6

6) 10 1/14

Первый столбик:

= 4 1/3

= 7 4/4 = 8

= 3 + (1/6 + 1/3) = 3 + (1 + 2) / 6 = 3 3/6 = 3 1/2

Второй столбик:

= 4 8/5 = 5 3/5

= 8 + (4/9 + 7/18) = 8 + (8+7) / 18 = 8 15/18 = 8 5/6

= 9 + (3/7 + 9/14) = 9 + (6 + 9) / 14 = 9 15/14 = 10 1/14