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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 836 · 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 16/36 in its simplest form. =
  2. 2.Write 2/4 in its simplest form. =
  3. 3.Is 4/9 in its simplest form? (a) Yes (b) No
  4. 4.What is the HCF of 6 and 8?
  5. 5.Write 54/60 in its simplest form. =
  6. 6.Write 12/20 in its simplest form. =
  7. 7.Write 24/80 in its simplest form. =
  8. 8.Write 8/12 in its simplest form. =
  9. 9.Is 12/27 in its simplest form? (a) No (b) Yes
  10. 10.Write 15/25 in its simplest form. =
  11. 11.What is the HCF of 18 and 48?
  12. 12.Is 4/5 in its simplest form? (a) Yes (b) No
  13. 13.What is the HCF of 54 and 63?
  14. 14.Is 1/2 in its simplest form? (a) No (b) Yes
  15. 15.Write 6/12 in its simplest form. =
  16. 16.Is 1/3 in its simplest form? (a) Yes (b) No
  17. 17.Is 3/4 in its simplest form? (a) Yes (b) No
  18. 18.What is the HCF of 10 and 35?
  19. 19.Write 27/45 in its simplest form. =
  20. 20.What is the HCF of 32 and 36?
  21. 21.What is the HCF of 63 and 81?
  22. 22.What is the HCF of 15 and 40?
  23. 23.What is the HCF of 6 and 36?
  24. 24.Is 10/14 in its simplest form? (a) Yes (b) No
  25. 25.Write 20/25 in its simplest form. =
  26. 26.What is the HCF of 7 and 28?
  27. 27.Write 30/54 in its simplest form. =
  28. 28.Is 1/6 in its simplest form? (a) No (b) Yes
  29. 29.What is the HCF of 15 and 24?
  30. 30.Write 5/30 in its simplest form. =
  31. 31.Write 8/72 in its simplest form. =
  32. 32.Write 7/70 in its simplest form. =
  33. 33.What is the HCF of 9 and 15?
  34. 34.Is 1/9 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 27 and 45?
  36. 36.Write 2/8 in its simplest form. =
  37. 37.What is the HCF of 36 and 40?
  38. 38.What is the HCF of 5 and 15?
  39. 39.Write 15/20 in its simplest form. =
  40. 40.Write 12/21 in its simplest form. =

Answer key

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

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