Выполните деянья: 1) 8+15\12 = ? 2) 11\35 + 2 =

Выполним деяния:

1) 8 + 15/12 = 8 + 1 3/12 = 9 3/12 = 9 1/4;

2) 11/35 + 2 = 2 11/35;

3) 5 7/24 + 7 5/24 = 5 + 7 + 7/24 + 5/24 = 12 + 12/24 = 12 + 1/2 = 12 1/2;

4) 12 6/7 - 5 3/7 = 12 - 5 + 6/7 - 3/7 = 7 + 3/7 = 7 3/7;

5) 10 16/27 - 6 10/27 + 4 5/27 = 10 - 6 + 4 + 16/27 - 10/27 + 5/27 = 8 + 11/27 = 8 11/27;

6) 15 8/10 - 9 7/10 + 8 2/10 = 15 - 9 + 8 + 8/10 - 7/10 + 2/10 = 14 + 3/10 = 14 3/10.

Вычислим значения выражений :

1) 8 4/15 + 2 11/15 = 8 + 2 + 4/15 + 11/15 = 10 + 15/15 = 10 + 1 = 11;

2) 1 - 14/23 = 23/23 - 14/23 = 9/23;

3) 9 5/12 - 4 7/12 = 9 - 4 + 5/7 - 7/12 = 5 - 2/12 = 5 - 1/6 = 4 + 6/6 - 1/6 = 4 + 5/6 = 4 5/6.