Where possible simplify the fraction
1. 3/5 − 2/5 =
2. 5/6 − 2/6 =
3. 4/7 − 2/7 =
4. 3/8 − 3/8 =
5. 7/9 − 4/9 =
6. 4/5 − 2/5 =
7. 5/6 − 1/6 =
8. 8/7 − 9/7 =
9. 1 7/8 − 2 1/8 =
10. 2 1/9 − 3 2/9 =
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to: 
