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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 839 · 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 4/5 in its simplest form? (a) No (b) Yes
  2. 2.Is 4/6 in its simplest form? (a) No (b) Yes
  3. 3.Write 8/20 in its simplest form. =
  4. 4.What is the HCF of 30 and 35?
  5. 5.What is the HCF of 24 and 56?
  6. 6.Write 25/45 in its simplest form. =
  7. 7.What is the HCF of 12 and 54?
  8. 8.Is 20/36 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 4 and 20?
  10. 10.What is the HCF of 15 and 27?
  11. 11.Is 2/3 in its simplest form? (a) No (b) Yes
  12. 12.Write 6/9 in its simplest form. =
  13. 13.Write 8/18 in its simplest form. =
  14. 14.Write 5/15 in its simplest form. =
  15. 15.Write 6/36 in its simplest form. =
  16. 16.Write 8/40 in its simplest form. =
  17. 17.Write 6/21 in its simplest form. =
  18. 18.What is the HCF of 14 and 63?
  19. 19.Write 32/40 in its simplest form. =
  20. 20.Write 24/40 in its simplest form. =
  21. 21.Write 6/10 in its simplest form. =
  22. 22.Is 7/10 in its simplest form? (a) Yes (b) No
  23. 23.Is 15/35 in its simplest form? (a) No (b) Yes
  24. 24.Is 1/3 in its simplest form? (a) No (b) Yes
  25. 25.Is 1/2 in its simplest form? (a) Yes (b) No
  26. 26.Is 6/60 in its simplest form? (a) No (b) Yes
  27. 27.Is 8/9 in its simplest form? (a) No (b) Yes
  28. 28.Write 45/72 in its simplest form. =
  29. 29.Write 45/81 in its simplest form. =
  30. 30.Is 8/36 in its simplest form? (a) Yes (b) No
  31. 31.What is the HCF of 3 and 21?
  32. 32.Write 8/12 in its simplest form. =
  33. 33.What is the HCF of 9 and 45?
  34. 34.Write 14/16 in its simplest form. =
  35. 35.Is 12/16 in its simplest form? (a) Yes (b) No
  36. 36.Is 1/10 in its simplest form? (a) No (b) Yes
  37. 37.Is 9/10 in its simplest form? (a) No (b) Yes
  38. 38.Write 4/24 in its simplest form. =
  39. 39.What is the HCF of 9 and 54?
  40. 40.What is the HCF of 24 and 54?

Answer key

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

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