1. 3 9/10 + 7 17/20 = 11 15/20 = 11 3/4
2. 10 3/4 + 6 13/20 = 16 28/20 = 17 8/20 = 17 2/5
3. 10 11/15 + 11 1/10 = 21 25/30 = 21 5/6
4. 6 13/20 + 11 1/10 = 17 15/20 = 17 3/4
5. 7 1/12 + 4 1/5 = 11 17/60
6. 10 2/5 + 9 5/8 = 19 41/40 = 20 1/40
7. 10 5/6 + 8 1/2 = 18 8/6 = 19 2/6 = 19 1/3
8. 13 8/15 + 9 2/5 = 22 14/15
9. 10 3/4 + 9 5/8 = 19 11/8 = 20 3/8
10. 11 1/10 + 8 1/2 = 19 6/10 = 19 3/5
11. 6 13/20 + 7 4/5 = 13 33/20 = 14 13/20
12. 11 9/20 + 8 1/2 = 19 19/20
13. 7 8/15 + 5 5/6 = 12 41/30 = 13 11/30
14. 7 4/5 + 11 1/10 = 18 9/10
15. 8 1/2 + 13 8/15 = 21 31/30 = 22 1/30
16. 9 2/5 + 8 1/2 = 17 9/10
17. 9 5/8 + 10 2/5 = 19 41/40 = 20 1/40
18. 10 2/5 + 7 17/20 = 17 25/20 = 18 5/20 = 18 1/4
19. 11 1/12 + 6 9/12 = 17 10/12 = 17 5/6
20. 10 2/4 + 3 9/10 = 13 28/20 = 14 8/20 = 14 2/5
21. 11 1/10 + 8 1/2 = 19 6/10 = 19 3/5
22. 7 1/12 + 4 1/2 = 11 7/12
23. 6 9/12 + 10 2/5 = 16 69/60 = 17 9/60 = 17 3/20
24. 7 17/20 + 11 1/12 = 18 116/60 = 19 56/60 = 19 14/15
25. 9 5/8 + 10 2/5 = 19 41/40 = 20 1/40
26. 10 2/5 + 7 17/20 = 17 25/20 = 18 5/20 = 18 1/4
27. 11 1/10 + 8 1/2 = 19 6/10 = 19 3/5
28. 6 13/20 + 7 4/5 = 13 33/20 = 14 13/20
29. 11 9/20 + 8 1/2 = 19 19/20
30. 7 8/15 + 5 5/6 = 12 41/30 = 13 11/30
31. 7 4/5 + 11 1/10 = 18 9/10
32. 8 1/2 + 13 8/15 = 21 31/30 = 22 1/30
33. 9 2/5 + 8 1/2 = 17 9/10
34. 10 3/4 + 9 5/8 = 19 11/8 = 20 3/8
35. 11 1/10 + 8 1/2 = 19 6/10 = 19 3/5
36. 6 13/20 + 7 4/5 = 13 33/20 = 14 13/20
37. 11 9/20 + 8 1/2 = 19 19/20
38. 7 8/15 + 5 5/6 = 12 41/30 = 13 11/30
39. 7 4/5 + 11 1/10 = 18 9/10
40. 8 1/2 + 13 8/15 = 21 31/30 = 22 1/30
Parent Tip: Review the logic above to help your child master the concept of adding mixed numbers with like denominators worksheet.