1021.
1/2+6 3/7=7/14+6+6/14=6 13/14
6+4 9/11=6+4+9/11=10 9/11
3/9+1 8/15=15/45+1 24/45=1 39/45=1 13/15
1/14+9 3/7=1/14+9 6/14=9 7/14=9 1/2
7 1/12+6=7+6+1/12=13 1/12
5/7+3 1/4=20/28+3 7/28=3 27/28
.
1022.
7-5 1/4=7-5 -1/4=2-1/4=1 4/4 - 1/4=1 3/4
6-5 2/3=6-5-2/3=1-2/3=1/3
12-9 3/8=12-9-3/8=3-3/8=2 5/8
11-6 2/3=11-6-2/3=5-2/3=4 1/3
8-3 2/7=8-3-2/7=5-2/7=4 5/7
5 6/13-2=5-2+6/13=3 6/13