Ответ:

Пошаговое объяснение:

1) 3 - 1. 5/12 = 2. 12/12 - 1. 5/12 = 1. 7/12

2) 1. 7/12 : 7/16 = 19/12 * 16/8 = 19/3 * 4/8 = 76/24

= 3. 4/24 = 3. 1/6

3) 12. 7/12 - 3. 1/6 =

12. 7/12 - 3. 2/12 = 9. 5/12

4) 9. 5/12 + 3/14 =

9. 35/84 + 18/84 = 9. 53/84

11 7/12-(3-1 7/12):7/16+3/14

1) 3-1 7/12=3-19/12=36/12-19/12=17/12

2) 17/12:7/16=17/12×16/7=68/21

3) 7/12-68/21=(49-272)/84= - 223/84

4) - 223/84+3/14=(-223+18)/84=

= - 205/84= - 2 37/84