Вычислите: 1) 4 - 1 4/7 2) 10 - 9 3/10 3) 5 2/7 - 2 5/7 4) 14 6/20 - 8 12/20 5) 8 3/14 - 5 9/14 6) 7 10/21 - 4 16/21

Определим значение следующих выражений. Записываем полученное решение. 

 1) 4 - 1 4/7 = 28/7 - 11/7 = 17/7 = 2 3/7.

2) 10 - 9 3/10 = 7/10.

3) 5 2/7 - 2 5/7 = 37/7 - 19/7 = 18/7 = 2 4/7.

4) 14 6/20 - 8 12/20 = 6 4/10 - 6/10 = 6 2/5 - 3/5 = 32/5 - 3/5 = 29/5 = 5 4/5.

5) 8 3/14 - 5 9/14 = 3 3/14 - 9/14 = 45/14 - 9/14 = 36/14 = 18/7 = 2 4/7.

6) 7 10/21 - 4 16/21 = 3 10/21 - 16/21 = 73/21 - 16/21 = 57/21 = 2 15/21 = 2 5/7.

7) 14 8/31 - 6 8/31 = 8.

8) (12 5/22 + 7 17/22) - (13 7/23 - 9 15/23) = 14 - (4 7/23 - 15/23) = 14 - (99/23 - 15/23) = 14 - 84/23 = 322/23 - 84/23 = 238/23 = 10 8/23.