1. 3/9 + 7/9 = 1
2. 4/12 + 8/12
3. 15/7 = 2 1/7
4. 7/20 + 13/20
5. 0.3 + 6 = 6.3
6. 9/12 + 12/12 = 1 9/12
7. 3/17 + 16/17 = 19/17
8. 3/4 + 1 1/4 = 2
9. 1/4 + 3/4 = 1
10. 3/8 + 1 5/8 = 2
11. 17/3 = 5 2/3
12. 25/6 = 4 1/6
13. 7/12 + 9/12 = 16/12 or 1 4/12
14. 9/3 + 4/3 = 12/3 or 4
15. 12/5 + 3/5 = 15/5 or 3
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