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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 825 · 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 8/9 in its simplest form? (a) No (b) Yes
  2. 2.Write 6/54 in its simplest form. =
  3. 3.Write 8/10 in its simplest form. =
  4. 4.Write 12/20 in its simplest form. =
  5. 5.Is 5/20 in its simplest form? (a) No (b) Yes
  6. 6.Write 48/54 in its simplest form. =
  7. 7.What is the HCF of 24 and 64?
  8. 8.What is the HCF of 30 and 35?
  9. 9.Is 1/5 in its simplest form? (a) Yes (b) No
  10. 10.Is 2/9 in its simplest form? (a) No (b) Yes
  11. 11.Is 3/10 in its simplest form? (a) No (b) Yes
  12. 12.Is 21/30 in its simplest form? (a) Yes (b) No
  13. 13.Write 63/81 in its simplest form. =
  14. 14.Is 3/5 in its simplest form? (a) Yes (b) No
  15. 15.Is 1/6 in its simplest form? (a) No (b) Yes
  16. 16.Is 15/40 in its simplest form? (a) No (b) Yes
  17. 17.Write 9/24 in its simplest form. =
  18. 18.Write 12/16 in its simplest form. =
  19. 19.Is 9/10 in its simplest form? (a) Yes (b) No
  20. 20.Is 2/5 in its simplest form? (a) No (b) Yes
  21. 21.What is the HCF of 30 and 42?
  22. 22.Write 35/45 in its simplest form. =
  23. 23.Write 12/32 in its simplest form. =
  24. 24.Write 9/18 in its simplest form. =
  25. 25.What is the HCF of 20 and 32?
  26. 26.Is 20/36 in its simplest form? (a) No (b) Yes
  27. 27.Is 7/9 in its simplest form? (a) No (b) Yes
  28. 28.Is 5/9 in its simplest form? (a) No (b) Yes
  29. 29.Write 24/56 in its simplest form. =
  30. 30.Write 7/70 in its simplest form. =
  31. 31.Is 5/7 in its simplest form? (a) No (b) Yes
  32. 32.Write 15/18 in its simplest form. =
  33. 33.Is 28/40 in its simplest form? (a) Yes (b) No
  34. 34.Write 4/36 in its simplest form. =
  35. 35.Is 35/45 in its simplest form? (a) Yes (b) No
  36. 36.Write 28/40 in its simplest form. =
  37. 37.What is the HCF of 12 and 27?
  38. 38.Is 12/15 in its simplest form? (a) No (b) Yes
  39. 39.Write 3/24 in its simplest form. =
  40. 40.What is the HCF of 32 and 72?

Answer key

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

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