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1. 2/3  1/2 = Answer: 1/6LCM = 6. So, 2/3  1/2 = 4/6  3/6 = 1/6.
2. 3/4  1/2 = Answer: 1/4LCM = 4. So, 3/4  1/2 = 3/4  2/4 = 1/4.
3. 4/5  1/2 = Answer: 3/10LCM = 10. So, 4/5  1/2 = 8/10  5/10 = 3/10.
4. 5/6  1/2 = Answer: 1/3LCM = 6. So, 5/6  1/2 = 5/6  3/6 = 2/6 = 1/3.
5. 6/7  1/2 = Answer: 5/14LCM = 14. So, 6/7  1/2 = 12/14  7/14 = 5/14.
6. 7/8  1/2 = Answer: 3/8LCM = 8. So, 7/8  1/2 = 7/8  4/8 = 3/8.
7. 8/9  1/2 = Answer: 7/18LCM = 18. So, 8/9  1/2 = 16/18  9/18 = 7/18.
8. 9/10  1/2 = Answer: 2/5LCM = 10. So, 9/10  1/2 = 9/10  5/10 = 4/10 = 2/5.
9. 10/11  1/2 = Answer: 9/22LCM = 22. So, 10/11  1/2 = 20/22  11/22 = 9/22.
10. 11/12  1/2 = Answer: 5/12LCM = 12. So, 11/12  1/2 = 11/12  6/12 = 5/12.
11. 2/3  1/4 = Answer: 5/12LCM = 12. So, 2/3  1/4 = 8/12  3/12 = 5/12.
12. 2/3  2/5 = Answer: 4/15LCM = 15. So, 2/3  2/5 = 10/15  6/15 = 4/15.
13. 2/3  1/6 = Answer: 1/2LCM = 6. So, 2/3  1/6 = 4/6  1/6 = 3/6 = 1/2.
14. 1/3  2/7 = Answer: 1/21LCM = 21. So, 1/3  2/7 = 7/21  6/21 = 1/21.
15. 2/3  3/8 = Answer: 7/24LCM = 24. So, 2/3  3/8 = 16/24  9/24 = 7/24.
16. 2/3  4/9 = Answer: 2/9LCM = 9. So, 2/3  4/9 = 6/9  4/9 = 2/9.
17. 1/3  3/10 = Answer: 1/30LCM = 30. So, 1/3  3/10 = 10/30  9/30 = 1/30.
18. 2/3  5/11 = Answer: 7/33LCM = 33. So, 2/3  5/11 = 22/33  15/33 = 7/33.
19. 2/3  7/12 = Answer: 1/12LCM = 12. So, 2/3  7/12 = 8/12  7/12 = 1/12.
20. 3/4  2/5 = Answer: 7/20LCM = 20. So, 3/4  2/5 = 15/20  8/20 = 7/20.
21. 3/4  1/6 = Answer: 7/12LCM = 12. So, 3/4  1/6 = 9/12  2/12 = 7/12.
22. 3/4  5/7 = Answer: 1/28LCM = 28. So, 3/4  5/7 = 21/28  20/28 = 1/28.
23. 3/4  5/8 = Answer: 1/8LCM = 8. So, 3/4  5/8 = 6/8  5/8 = 1/8.
24. 3/4  5/9 = Answer: 7/36LCM = 36. So, 3/4  5/9 = 27/36  20/36 = 7/36.
25. 3/4  7/10 = Answer: 1/20LCM = 20. So, 3/4  7/10 = 15/20  14/20 = 1/20.
26. 1/4  2/11 = Answer: 3/44LCM = 44. So, 1/4  2/11 = 11/44  8/44 = 3/44.
27. 3/4  5/12 = Answer: 1/3LCM = 12. So, 3/4  5/12 = 9/12  5/12 = 4/12 = 1/3.
28. 4/5  1/6 = Answer: 19/30LCM = 30. So, 4/5  1/6 = 24/30  5/30 = 19/30.
29. 3/5  2/7 = Answer: 11/35LCM = 35. So, 3/5  2/7 = 21/35  10/35 = 11/35.
30. 4/5  5/8 = Answer: 7/40LCM = 40. So, 4/5  5/8 = 32/40  25/40 = 7/40.
31. 3/5  5/9 = Answer: 2/45LCM = 45. So, 3/5  5/9 = 27/45  25/45 = 2/45.
32. 2/5  3/10 = Answer: 1/10LCM = 10. So, 2/5  3/10 = 4/10  3/10 = 1/10.
33. 4/5  7/11 = Answer: 9/55LCM = 55. So, 4/5  7/11 = 44/55  35/55 = 9/55.
34. 3/5  7/12 = Answer: 1/60LCM = 60. So, 3/5  7/12 = 36/60  35/60 = 1/60.
35. 5/6  5/7 = Answer: 5/42LCM = 42. So, 5/6  5/7 = 35/42  30/42 = 5/42.
36. 5/6  3/8 = Answer: 11/24LCM = 24. So, 5/6  3/8 = 20/24  9/24 = 11/24.
37. 5/6  7/9 = Answer: 1/18LCM = 18. So, 5/6  7/9 = 15/18  14/18 = 1/18.
38. 5/6  7/10 = Answer: 2/15LCM = 30. So, 5/6  7/10 = 25/30  21/30 = 4/30 = 2/15.
39. 5/6  8/11 = Answer: 7/66LCM = 66. So, 5/6  8/11 = 55/66  48/66 = 7/66.
40. 5/6  7/12 = Answer: 1/4LCM = 12. So, 5/6  7/12 = 10/12  7/12 = 3/12 = 1/4.
41. 6/7  5/8 = Answer: 13/56LCM = 56. So, 6/7  5/8 = 48/56  35/56 = 13/56.
42. 5/7  5/9 = Answer: 10/63LCM = 63. So, 5/7  5/9 = 45/63  35/63 = 10/63.
43. 4/7  3/10 = Answer: 19/70LCM = 70. So, 4/7  3/10 = 40/70  21/70 = 19/70.
44. 3/7  3/11 = Answer: 12/77LCM = 77. So, 3/7  3/11 = 33/77  21/77 = 12/77.
45. 2/7  1/12 = Answer: 17/84LCM = 84. So, 2/7  1/12 = 24/84  7/84 = 17/84.
46. 7/8  5/9 = Answer: 23/72LCM = 72. So, 7/8  5/9 = 63/72  40/72 = 23/72.
47. 5/8  3/10 = Answer: 13/40LCM = 40. So, 5/8  3/10 = 25/40  12/40 = 13/40.
48. 3/8  2/11 = Answer: 17/88LCM = 88. So, 3/8  2/11 = 33/88  16/88 = 17/88.
49. 7/8  7/12 = Answer: 7/24LCM = 24. So, 7/8  7/12 = 21/24  14/24 = 7/24.
50. 8/9  7/10 = Answer: 17/90LCM = 90. So, 8/9  7/10 = 80/90  63/90 = 17/90.
51. 7/9  6/11 = Answer: 23/99LCM = 99. So, 7/9  6/11 = 77/99  54/99 = 23/99.
Try the Quiz : Arithmetic Homework Help : Subtraction of Fractions II
