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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 796 · 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 4/24 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 5 and 10?
  3. 3.What is the HCF of 8 and 32?
  4. 4.Write 45/81 in its simplest form. =
  5. 5.What is the HCF of 15 and 18?
  6. 6.Write 10/18 in its simplest form. =
  7. 7.Is 5/7 in its simplest form? (a) Yes (b) No
  8. 8.Write 4/10 in its simplest form. =
  9. 9.Write 9/27 in its simplest form. =
  10. 10.Is 9/30 in its simplest form? (a) Yes (b) No
  11. 11.Write 15/18 in its simplest form. =
  12. 12.Write 16/20 in its simplest form. =
  13. 13.Write 2/20 in its simplest form. =
  14. 14.Is 1/8 in its simplest form? (a) Yes (b) No
  15. 15.What is the HCF of 2 and 8?
  16. 16.Write 9/36 in its simplest form. =
  17. 17.Is 15/24 in its simplest form? (a) No (b) Yes
  18. 18.Write 24/32 in its simplest form. =
  19. 19.Write 3/6 in its simplest form. =
  20. 20.Is 10/45 in its simplest form? (a) No (b) Yes
  21. 21.Is 5/50 in its simplest form? (a) No (b) Yes
  22. 22.Write 21/27 in its simplest form. =
  23. 23.Write 10/25 in its simplest form. =
  24. 24.Write 14/18 in its simplest form. =
  25. 25.Write 36/45 in its simplest form. =
  26. 26.Is 12/16 in its simplest form? (a) Yes (b) No
  27. 27.Is 4/10 in its simplest form? (a) Yes (b) No
  28. 28.What is the HCF of 7 and 56?
  29. 29.What is the HCF of 36 and 45?
  30. 30.Write 35/63 in its simplest form. =
  31. 31.Is 8/9 in its simplest form? (a) No (b) Yes
  32. 32.Is 3/18 in its simplest form? (a) Yes (b) No
  33. 33.What is the HCF of 4 and 28?
  34. 34.What is the HCF of 3 and 9?
  35. 35.What is the HCF of 25 and 40?
  36. 36.What is the HCF of 63 and 72?
  37. 37.Write 3/21 in its simplest form. =
  38. 38.What is the HCF of 6 and 27?
  39. 39.Write 6/18 in its simplest form. =
  40. 40.Is 1/3 in its simplest form? (a) Yes (b) No

Answer key

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

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