7 14/15+2 1/15=
9 24/27+12 13/27=
1-12/19=
8-3 6/15=
12-11 6/11=
16 3/13-6 8/13=
13 4/9-2 8/9=
10 7/16-4 12/16=
29 49/53-8 49/53=
(20 16/25 +13 9/25)-(23 4/14 +7 13/14)=

9 24/27+12 13/27=21 37/27=22 10/27

1-12/19= 19/19-12/19=7/19

8-3 6/15=5-6/15=4 15/15-6/15=4 9/15=4 3/5

12-11 6/11= 1-6/11= 11/11-6/11=5/11

16 3/13-6 8/13=8 3/13-8/13=7 16/13-8/13=7 8/13

13 4/9-2 8/9=11 4/9-8/9= 10 13/9-8/9=10 5/9

10 7/16-4 12/16=6 7/16-12/16=5 23/16-12/16=5 11/16

29 49/53- 8 49/53=21

(20 16/25+13 9/25)-(23 4/14+7 13/14)=34-30 17/14=34-31 3/14= 33-3/14=32 14/14-3/14= 32 11/14