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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 637 · 40 questions
TalentJR

The method (Divide by the HCF): Find the HCF (highest common factor) of the top and the bottom. Divide the top and the bottom by the HCF. If the HCF is 1, the fraction is already in its simplest form.

NameDateTime takenScore ___ / 40
  1. 1.Write 14/21 in its simplest form. =
  2. 2.What is the HCF of 8 and 32?
  3. 3.Is 1/5 in its simplest form? (a) No (b) Yes
  4. 4.Is 40/45 in its simplest form? (a) Yes (b) No
  5. 5.Write 35/42 in its simplest form. =
  6. 6.Write 8/72 in its simplest form. =
  7. 7.Write 35/40 in its simplest form. =
  8. 8.Write 81/90 in its simplest form. =
  9. 9.Is 6/7 in its simplest form? (a) No (b) Yes
  10. 10.Is 1/2 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 12 and 14?
  12. 12.What is the HCF of 21 and 28?
  13. 13.What is the HCF of 12 and 15?
  14. 14.What is the HCF of 18 and 45?
  15. 15.Write 4/14 in its simplest form. =
  16. 16.What is the HCF of 49 and 63?
  17. 17.Write 12/14 in its simplest form. =
  18. 18.What is the HCF of 2 and 8?
  19. 19.Write 63/90 in its simplest form. =
  20. 20.Is 4/9 in its simplest form? (a) Yes (b) No
  21. 21.What is the HCF of 12 and 28?
  22. 22.What is the HCF of 24 and 40?
  23. 23.Write 2/6 in its simplest form. =
  24. 24.What is the HCF of 7 and 63?
  25. 25.What is the HCF of 8 and 24?
  26. 26.Write 15/20 in its simplest form. =
  27. 27.What is the HCF of 14 and 21?
  28. 28.Is 4/7 in its simplest form? (a) Yes (b) No
  29. 29.Is 6/24 in its simplest form? (a) Yes (b) No
  30. 30.What is the HCF of 25 and 40?
  31. 31.What is the HCF of 28 and 49?
  32. 32.Is 2/16 in its simplest form? (a) No (b) Yes
  33. 33.Write 56/80 in its simplest form. =
  34. 34.What is the HCF of 5 and 20?
  35. 35.Write 8/16 in its simplest form. =
  36. 36.Is 4/20 in its simplest form? (a) No (b) Yes
  37. 37.Is 5/6 in its simplest form? (a) Yes (b) No
  38. 38.Is 6/20 in its simplest form? (a) No (b) Yes
  39. 39.Is 20/36 in its simplest form? (a) No (b) Yes
  40. 40.Write 42/54 in its simplest form. =

Answer key

  1. 2/3
  2. 8
  3. Yes
  4. No
  5. 5/6
  6. 1/9
  7. 7/8
  8. 9/10
  9. Yes
  10. Yes
  11. 2
  12. 7
  13. 3
  14. 9
  15. 2/7
  16. 7
  17. 6/7
  18. 2
  19. 7/10
  20. Yes
  21. 4
  22. 8
  23. 1/3
  24. 7
  25. 8
  26. 3/4
  27. 7
  28. Yes
  29. No
  30. 5
  31. 7
  32. No
  33. 7/10
  34. 5
  35. 1/2
  36. No
  37. Yes
  38. No
  39. No
  40. 7/9

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