Where possible simplify the fraction
1. 2/5 + 2/5 =
2. 1/6 + 2/6 =
3. 4/7 + 2/7 =
4. 3/8 + 3/8 =
5. 4/9 + 4/9 =
6. 4/5 + 2/5 =
7. 4/6 + 2/6 =
8. 8/7 + 9/7 =
9. 14/8 + 12/8 =
10. 1 2/5 + 2/5 =
11. 2 1/6 + 1 2/6 =
12. 1 4/7 + 1 2/7 =
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