9 2/7-3 1/7= 6 1/7
4 1/5+3 2/5= 4/5
1 4/5+4/5= 2 3/5
3-1/6= 2 5/6
3-1 2/5= 1 3/5
4 1/3-2/3 = 3 2/3
2+13= 15
3/11+4= 4 3/11
7 4/5-4/5= 7
3 1/6-1/6= 3
1. 6 1/7
2. 7 3/5
3. 1 8/5=2 3/5
4. 2 6/6-1/6=2 5/6
5. 2 2/5
6. 3 4/3-2/3=3 2/3
7. 15
8.4 3/11
9. 7
10. 3
