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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 71 · 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.Is 6/16 in its simplest form? (a) Yes (b) No
  2. 2.Write 4/14 in its simplest form. =
  3. 3.What is the HCF of 18 and 60?
  4. 4.Write 4/20 in its simplest form. =
  5. 5.Write 48/54 in its simplest form. =
  6. 6.Is 12/20 in its simplest form? (a) Yes (b) No
  7. 7.What is the HCF of 32 and 36?
  8. 8.Write 2/8 in its simplest form. =
  9. 9.Write 8/18 in its simplest form. =
  10. 10.Is 5/8 in its simplest form? (a) Yes (b) No
  11. 11.Write 28/36 in its simplest form. =
  12. 12.Is 3/7 in its simplest form? (a) Yes (b) No
  13. 13.What is the HCF of 12 and 20?
  14. 14.Write 2/14 in its simplest form. =
  15. 15.What is the HCF of 12 and 14?
  16. 16.Write 5/40 in its simplest form. =
  17. 17.Write 20/28 in its simplest form. =
  18. 18.What is the HCF of 18 and 81?
  19. 19.Is 6/7 in its simplest form? (a) No (b) Yes
  20. 20.Is 1/2 in its simplest form? (a) Yes (b) No
  21. 21.What is the HCF of 24 and 27?
  22. 22.What is the HCF of 14 and 16?
  23. 23.Write 3/6 in its simplest form. =
  24. 24.Write 16/28 in its simplest form. =
  25. 25.Is 1/5 in its simplest form? (a) Yes (b) No
  26. 26.Is 3/30 in its simplest form? (a) Yes (b) No
  27. 27.Is 2/3 in its simplest form? (a) Yes (b) No
  28. 28.What is the HCF of 21 and 24?
  29. 29.What is the HCF of 6 and 12?
  30. 30.Write 4/40 in its simplest form. =
  31. 31.Write 21/24 in its simplest form. =
  32. 32.What is the HCF of 9 and 24?
  33. 33.Is 6/27 in its simplest form? (a) No (b) Yes
  34. 34.What is the HCF of 18 and 63?
  35. 35.Write 18/63 in its simplest form. =
  36. 36.Write 18/30 in its simplest form. =
  37. 37.What is the HCF of 8 and 28?
  38. 38.What is the HCF of 21 and 70?
  39. 39.Is 1/8 in its simplest form? (a) Yes (b) No
  40. 40.Write 35/45 in its simplest form. =

Answer key

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

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