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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 819 · 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 32/56 in its simplest form. =
  2. 2.Is 5/40 in its simplest form? (a) No (b) Yes
  3. 3.Write 63/72 in its simplest form. =
  4. 4.What is the HCF of 9 and 63?
  5. 5.What is the HCF of 6 and 36?
  6. 6.Write 40/64 in its simplest form. =
  7. 7.What is the HCF of 9 and 54?
  8. 8.Write 12/28 in its simplest form. =
  9. 9.Is 3/6 in its simplest form? (a) No (b) Yes
  10. 10.Is 1/5 in its simplest form? (a) No (b) Yes
  11. 11.Write 10/18 in its simplest form. =
  12. 12.Is 1/2 in its simplest form? (a) Yes (b) No
  13. 13.Write 4/20 in its simplest form. =
  14. 14.What is the HCF of 30 and 35?
  15. 15.What is the HCF of 12 and 40?
  16. 16.Is 8/9 in its simplest form? (a) Yes (b) No
  17. 17.What is the HCF of 4 and 20?
  18. 18.What is the HCF of 25 and 35?
  19. 19.What is the HCF of 24 and 64?
  20. 20.Is 36/42 in its simplest form? (a) No (b) Yes
  21. 21.What is the HCF of 3 and 27?
  22. 22.What is the HCF of 27 and 72?
  23. 23.Is 3/9 in its simplest form? (a) No (b) Yes
  24. 24.Is 5/15 in its simplest form? (a) Yes (b) No
  25. 25.Write 4/28 in its simplest form. =
  26. 26.What is the HCF of 6 and 24?
  27. 27.Write 12/30 in its simplest form. =
  28. 28.Write 15/20 in its simplest form. =
  29. 29.What is the HCF of 14 and 18?
  30. 30.What is the HCF of 18 and 60?
  31. 31.Is 5/9 in its simplest form? (a) No (b) Yes
  32. 32.Write 36/81 in its simplest form. =
  33. 33.Is 1/8 in its simplest form? (a) Yes (b) No
  34. 34.What is the HCF of 4 and 18?
  35. 35.Write 6/9 in its simplest form. =
  36. 36.What is the HCF of 7 and 14?
  37. 37.Is 16/36 in its simplest form? (a) Yes (b) No
  38. 38.Write 18/24 in its simplest form. =
  39. 39.Write 4/18 in its simplest form. =
  40. 40.Write 3/6 in its simplest form. =

Answer key

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

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