1)3/4+5/8;
2)2/5+7/16;
3)7/16+1/4;
4)2/7+1/3;
5)5/18+2/3;
6)5/6+7/8;
7)5/6+2/9;
8)1/4+2/9;
​

1) 10 3/7

2) 17/40 = 0,425

3) 17/20 = 0,85

4) 1 7/12

5) 29/35 = 0,828571429

6) 31/42 = 0,738095238

7) 4/5 = 0,8

8) 23/36 = 638888889

9) 39/100 = 0,39

10) 23/24 = 958333333

11) 7/18 = 388888889

12) 41/45 = 911111111

1) 1 3/8 = 1,375

2) 67/80 = 0,8375

3) 11/16 = 0,6875

4) 13/21 = 0,619047619

5) 17/18 = 0,944444444

6) 1 17/24 = 1,708333333

7) 1 1/18 = 1,055555556

8) 17/36 = 0,472222222

Удачи!!)