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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 938 · 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 14/18 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 20 and 28?
  3. 3.Is 1/4 in its simplest form? (a) Yes (b) No
  4. 4.What is the HCF of 40 and 48?
  5. 5.Is 6/15 in its simplest form? (a) Yes (b) No
  6. 6.Is 30/36 in its simplest form? (a) No (b) Yes
  7. 7.Is 9/15 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 9 and 21?
  9. 9.Is 12/15 in its simplest form? (a) Yes (b) No
  10. 10.Write 8/10 in its simplest form. =
  11. 11.Is 2/14 in its simplest form? (a) Yes (b) No
  12. 12.Is 27/30 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 9 and 24?
  14. 14.Is 6/24 in its simplest form? (a) No (b) Yes
  15. 15.Is 6/16 in its simplest form? (a) Yes (b) No
  16. 16.Is 18/48 in its simplest form? (a) Yes (b) No
  17. 17.Write 28/35 in its simplest form. =
  18. 18.Write 6/48 in its simplest form. =
  19. 19.Is 7/8 in its simplest form? (a) No (b) Yes
  20. 20.Is 6/7 in its simplest form? (a) Yes (b) No
  21. 21.Write 35/56 in its simplest form. =
  22. 22.Write 14/35 in its simplest form. =
  23. 23.Write 9/24 in its simplest form. =
  24. 24.Write 5/10 in its simplest form. =
  25. 25.Write 6/12 in its simplest form. =
  26. 26.Is 18/24 in its simplest form? (a) Yes (b) No
  27. 27.Write 28/40 in its simplest form. =
  28. 28.What is the HCF of 5 and 40?
  29. 29.Is 5/9 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 5 and 20?
  31. 31.Write 20/32 in its simplest form. =
  32. 32.Write 9/30 in its simplest form. =
  33. 33.What is the HCF of 24 and 27?
  34. 34.What is the HCF of 2 and 18?
  35. 35.Write 6/16 in its simplest form. =
  36. 36.Write 49/63 in its simplest form. =
  37. 37.Is 5/20 in its simplest form? (a) Yes (b) No
  38. 38.What is the HCF of 28 and 36?
  39. 39.What is the HCF of 16 and 18?
  40. 40.What is the HCF of 24 and 40?

Answer key

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

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