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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 39 · 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 7/9 in its simplest form? (a) No (b) Yes
  2. 2.Is 3/9 in its simplest form? (a) Yes (b) No
  3. 3.What is the HCF of 28 and 49?
  4. 4.Is 6/36 in its simplest form? (a) No (b) Yes
  5. 5.Write 20/28 in its simplest form. =
  6. 6.What is the HCF of 2 and 18?
  7. 7.Is 1/6 in its simplest form? (a) Yes (b) No
  8. 8.Write 12/14 in its simplest form. =
  9. 9.What is the HCF of 28 and 36?
  10. 10.What is the HCF of 6 and 36?
  11. 11.Write 8/20 in its simplest form. =
  12. 12.Is 25/40 in its simplest form? (a) No (b) Yes
  13. 13.Is 3/4 in its simplest form? (a) Yes (b) No
  14. 14.Write 49/63 in its simplest form. =
  15. 15.What is the HCF of 18 and 21?
  16. 16.Is 20/24 in its simplest form? (a) No (b) Yes
  17. 17.Write 10/12 in its simplest form. =
  18. 18.What is the HCF of 18 and 48?
  19. 19.Write 3/9 in its simplest form. =
  20. 20.Write 12/30 in its simplest form. =
  21. 21.What is the HCF of 32 and 56?
  22. 22.Is 8/36 in its simplest form? (a) No (b) Yes
  23. 23.Write 12/16 in its simplest form. =
  24. 24.Write 32/40 in its simplest form. =
  25. 25.What is the HCF of 4 and 10?
  26. 26.Is 5/30 in its simplest form? (a) Yes (b) No
  27. 27.What is the HCF of 40 and 64?
  28. 28.Is 6/14 in its simplest form? (a) No (b) Yes
  29. 29.Is 10/16 in its simplest form? (a) Yes (b) No
  30. 30.What is the HCF of 15 and 25?
  31. 31.What is the HCF of 8 and 12?
  32. 32.Write 9/18 in its simplest form. =
  33. 33.Write 8/64 in its simplest form. =
  34. 34.What is the HCF of 5 and 15?
  35. 35.Write 16/20 in its simplest form. =
  36. 36.What is the HCF of 8 and 72?
  37. 37.Write 24/27 in its simplest form. =
  38. 38.Write 14/16 in its simplest form. =
  39. 39.Is 6/24 in its simplest form? (a) Yes (b) No
  40. 40.Write 14/20 in its simplest form. =

Answer key

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

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