1. 5/10 + 1 4/10 = 1 9/10
2. 1 5/15 + 3/15 = 1 8/15
3. 1 3/6 + 4/6 = 1 7/6 = 2 1/6
4. 3/12 + 2 2/12 = 2 5/12
5. 8/20 + 2 5/20 = 2 13/20
6. 5/8 + 2 4/8 = 2 9/8 = 2 1/8
7. 2 21/28 + 8/28 = 2 29/28 = 3 1/28
8. 3 5/10 + 4/10 = 3 9/10
9. 35/42 + 3 18/42 = 3 53/42 = 4 11/42
10. 3 1/9 + 6/9 = 3 7/9
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Answers & Comments
1. 5/10 + 1 4/10 = 1 9/10
2. 1 5/15 + 3/15 = 1 8/15
3. 1 3/6 + 4/6 = 1 7/6 = 2 1/6
4. 3/12 + 2 2/12 = 2 5/12
5. 8/20 + 2 5/20 = 2 13/20
6. 5/8 + 2 4/8 = 2 9/8 = 2 1/8
7. 2 21/28 + 8/28 = 2 29/28 = 3 1/28
8. 3 5/10 + 4/10 = 3 9/10
9. 35/42 + 3 18/42 = 3 53/42 = 4 11/42
10. 3 1/9 + 6/9 = 3 7/9