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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 56 · 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 1/3 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 8 and 24?
  3. 3.What is the HCF of 30 and 54?
  4. 4.What is the HCF of 9 and 81?
  5. 5.Write 48/54 in its simplest form. =
  6. 6.Write 3/9 in its simplest form. =
  7. 7.Is 48/54 in its simplest form? (a) Yes (b) No
  8. 8.Write 6/16 in its simplest form. =
  9. 9.Is 1/9 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 30 and 48?
  11. 11.What is the HCF of 10 and 12?
  12. 12.Write 21/35 in its simplest form. =
  13. 13.What is the HCF of 56 and 80?
  14. 14.What is the HCF of 6 and 24?
  15. 15.What is the HCF of 42 and 49?
  16. 16.Is 4/8 in its simplest form? (a) No (b) Yes
  17. 17.What is the HCF of 8 and 10?
  18. 18.Write 6/42 in its simplest form. =
  19. 19.Write 12/15 in its simplest form. =
  20. 20.What is the HCF of 8 and 32?
  21. 21.Write 20/36 in its simplest form. =
  22. 22.Write 6/20 in its simplest form. =
  23. 23.Write 18/24 in its simplest form. =
  24. 24.What is the HCF of 27 and 36?
  25. 25.Is 6/8 in its simplest form? (a) No (b) Yes
  26. 26.What is the HCF of 4 and 12?
  27. 27.What is the HCF of 8 and 72?
  28. 28.What is the HCF of 15 and 24?
  29. 29.Write 24/28 in its simplest form. =
  30. 30.What is the HCF of 45 and 54?
  31. 31.What is the HCF of 15 and 18?
  32. 32.Is 10/12 in its simplest form? (a) Yes (b) No
  33. 33.Write 4/12 in its simplest form. =
  34. 34.Write 8/32 in its simplest form. =
  35. 35.Write 7/63 in its simplest form. =
  36. 36.Is 18/60 in its simplest form? (a) Yes (b) No
  37. 37.Write 10/18 in its simplest form. =
  38. 38.What is the HCF of 12 and 14?
  39. 39.Write 12/28 in its simplest form. =
  40. 40.Write 27/30 in its simplest form. =

Answer key

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

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