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1. 1/2 + 2/3 =
Réponse: 7/6PPCM = 6. Donc, 1/2 + 2/3 = 3/6 + 4/6 = 7/6. 2. 1/2 + 3/4 =
Réponse: 5/4PPCM = 4. Donc, 1/2 + 3/4 = 2/4 + 3/4 = 5/4. 3. 1/2 + 4/5 =
Réponse: 13/10PPCM = 10. Donc, 1/2 + 4/5 = 5/10 + 8/10 = 13/10.
4. 1/2 + 5/6 =
Réponse: 4/3PPCM = 6. Donc, 1/2 + 5/6 = 3/6 + 5/6 = 8/6 = 4/3. 5. 1/2 + 6/7 =
Réponse: 19/14PPCM = 14. Donc, 1/2 + 6/7 = 7/14 + 12/14 = 19/14. 6. 1/2 + 7/8 =
Réponse: 11/8PPCM = 8. Donc, 1/2 + 7/8 = 4/8 + 7/8 = 11/8. 7. 1/2 + 8/9 =
Réponse: 25/18PPCM = 18. Donc, 1/2 + 8/9 = 9/18 + 16/18 = 25/18. 8. 1/2 + 9/10 =
Réponse: 7/5PPCM = 10. Donc, 1/2 + 9/10 = 5/10 + 9/10 = 14/10 = 7/5. 9. 1/2 + 10/11 =
Réponse: 31/22PPCM = 22. Donc, 1/2 + 10/11 = 11/22 + 20/22 = 31/22. 10. 1/2 + 11/12 =
Réponse: 17/12PPCM = 12. Donc, 1/2 + 11/12 = 6/12 + 11/12 = 17/12. 11. 2/3 + 2/3 =
Réponse: 4/3PPCM = 3. Donc, 2/3 + 2/3 = 4/3. 12. 2/3 + 3/4 =
Réponse: 17/12PPCM = 12. Donc, 2/3 + 3/4 = 8/12 + 9/12 = 17/12. 13. 2/3 + 3/5 =
Réponse: 19/15PPCM = 15. Donc, 2/3 + 3/5 = 10/15 + 9/15 = 19/15. 14. 2/3 + 5/6 =
Réponse: 3/2PPCM = 6. Donc, 2/3 + 5/6 = 4/6 + 5/6 = 9/6 = 3/2. 15. 2/3 + 4/7 =
Réponse: 26/21PPCM = 21. Donc, 2/3 + 4/7 = 14/21 + 12/21 = 26/21. 16. 2/3 + 5/8 =
Réponse: 31/24PPCM = 24. Donc, 2/3 + 5/8 = 16/24 + 15/24 = 31/24. 17. 1/3 + 4/9 =
Réponse: 7/9PPCM = 9. Donc, 1/3 + 4/9 = 3/9 + 4/9 = 7/9. 18. 1/3 + 7/10 =
Réponse: 31/30PPCM = 30. Donc, 1/3 + 7/10 = 10/30 + 21/30 = 31/30. 19. 2/3 + 6/11 =
Réponse: 40/33PPCM = 33. Donc, 2/3 + 6/11 = 22/33 + 18/33 = 40/33. 20. 1/3 + 11/12 =
Réponse: 5/4PPCM = 12. Donc, 1/3 + 11/12 = 4/12 + 11/12 = 15/12 = 5/4. 21. 3/4 + 3/4 =
Réponse: 3/2PPCM = 4. Donc, 3/4 + 3/4 = 6/4 = 3/2. 22. 3/4 + 2/5 =
Réponse: 23/20PPCM = 20. Donc, 3/4 + 2/5 = 15/20 + 8/20 = 23/20. 23. 1/4 + 5/6 =
Réponse: 13/12PPCM = 12. Donc, 1/4 + 5/6 = 3/12 + 10/12 = 13/12. 24. 3/4 + 5/7 =
Réponse: 41/28PPCM = 28. Donc, 3/4 + 5/7 = 21/28 + 20/28 = 41/28. 25. 1/4 + 7/8 =
Réponse: 9/8PPCM = 8. Donc, 1/4 + 7/8 = 2/8 + 7/8 = 9/8. 26. 3/4 + 8/9 =
Réponse: 59/36PPCM = 36. Donc, 3/4 + 8/9 = 27/36 + 32/36 = 59/36. 27. 1/4 + 3/10 =
Réponse: 11/20PPCM = 20. Donc, 1/4 + 3/10 = 5/20 + 6/20 = 11/20. 28. 3/4 + 4/11 =
Réponse: 49/44PPCM = 44. Donc, 3/4 + 4/11 = 33/44 + 16/44 = 49/44. 29. 1/4 + 11/12 =
Réponse: 7/6PPCM = 12. Donc, 1/4 + 11/12 = 3/12 + 11/12 = 14/12 = 7/6. 30. 1/5 + 3/5 =
Réponse: 4/5PPCM = 5. Donc, 1/5 + 3/5 = 4/5. 31. 4/5 + 1/6 =
Réponse: 29/30PPCM = 30. Donc, 4/5 + 1/6 = 24/30 + 5/30 = 29/30. 32. 4/5 + 2/7 =
Réponse: 38/35PPCM = 35. Donc, 4/5 + 2/7 = 28/35 + 10/35 = 38/35. 33. 3/5 + 3/8 =
Réponse: 39/40PPCM = 40. Donc, 3/5 + 3/8 = 24/40 + 15/40 = 39/40. 34. 2/5 + 4/9 =
Réponse: 38/45PPCM = 45. Donc, 2/5 + 4/9 = 18/45 + 20/45 = 38/45. 35. 4/5 + 3/10 =
Réponse: 11/10PPCM = 10. Donc, 4/5 + 3/10 = 8/10 + 3/10 = 11/10. 36. 3/5 + 6/11 =
Réponse: 63/55PPCM = 55. Donc, 3/5 + 6/11 = 33/55 + 30/55 = 63/55. 37. 2/5 + 7/12 =
Réponse: 59/60PPCM = 60. Donc, 2/5 + 7/12 = 24/60 + 35/60 = 59/60. 38. 5/6 + 5/6 =
Réponse: 5/3PPCM = 6. Donc, 5/6 + 5/6 = 10/6 = 5/3. 39. 5/6 + 2/7 =
Réponse: 47/42PPCM = 42. Donc, 5/6 + 2/7 = 35/42 + 12/42 = 47/42. 40. 1/6 + 7/8 =
Réponse: 25/24PPCM = 24. Donc, 1/6 + 7/8 = 4/24 + 21/24 = 25/24. 41. 1/6 + 8/9 =
Réponse: 19/18PPCM = 18. Donc, 1/6 + 8/9 = 3/18 + 16/18 = 19/18. 42. 5/6 + 7/10 =
Réponse: 23/15PPCM = 30. Donc, 5/6 + 7/10 = 25/30 + 21/30 = 46/30 = 23/15. 43. 5/6 + 4/11 =
Réponse: 79/66PPCM = 66. Donc, 5/6 + 4/11 = 55/66 + 24/66 = 79/66. 44. 1/6 + 5/12 =
Réponse: 7/12PPCM = 12. Donc, 1/6 + 5/12 = 2/12 + 5/12 = 7/12. 45. 6/7 + 3/7 =
Réponse: 9/7PPCM = 7. Donc, 6/7 + 3/7 = 9/7. 46. 5/7 + 3/8 =
Réponse: 61/56PPCM = 56. Donc, 5/7 + 3/8 = 40/56 + 21/56 = 61/56. 47. 4/7 + 2/9 =
Réponse: 50/63PPCM = 63. Donc, 4/7 + 2/9 = 36/63 + 14/63 = 50/63. 48. 3/7 + 7/10 =
Réponse: 79/70PPCM = 70. Donc, 3/7 + 7/10 = 30/70 + 49/70 = 79/70. 49. 2/7 + 6/11 =
Réponse: 64/77PPCM = 77. Donc, 2/7 + 6/11 = 22/77 + 42/77 = 64/77. 50. 1/7 + 5/12 =
Réponse: 47/84PPCM = 84. Donc, 1/7 + 5/12 = 12/84 + 35/84 = 47/84. 51. 7/8 + 5/8 =
Réponse: 3/2PPCM = 8. Donc, 7/8 + 5/8 = 12/8 = 3/2. 52. 5/8 + 2/9 =
Réponse: 61/72PPCM = 72. Donc, 5/8 + 2/9 = 45/72 + 16/72 = 61/72. 53. 3/8 + 3/10 =
Réponse: 27/40PPCM = 40. Donc, 3/8 + 3/10 = 15/40 + 12/40 = 27/40. 54. 1/8 + 2/11 =
Réponse: 27/88PPCM = 88. Donc, 1/8 + 2/11 = 11/88 + 16/88 = 27/88. 55. 7/8 + 5/12 =
Réponse: 31/24PPCM = 24. Donc, 7/8 + 5/12 = 21/24 + 10/24 = 31/24. 56. 4/9 + 2/9 =
Réponse: 2/3PPCM = 9. Donc, 4/9 + 2/9 = 6/9 = 2/3. 57. 2/9 + 3/10 =
Réponse: 47/90PPCM = 90. Donc, 2/9 + 3/10 = 20/90 + 27/90 = 47/90. 58. 7/9 + 2/11 =
Réponse: 95/99PPCM = 99. Donc, 7/9 + 2/11 = 77/99 + 18/99 = 95/99.
Essayez le Quizz : Addition de Fractions II
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