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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 594 · 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.What is the HCF of 8 and 18?
  2. 2.Is 4/24 in its simplest form? (a) Yes (b) No
  3. 3.Is 4/5 in its simplest form? (a) Yes (b) No
  4. 4.What is the HCF of 3 and 12?
  5. 5.Write 15/35 in its simplest form. =
  6. 6.Is 18/48 in its simplest form? (a) No (b) Yes
  7. 7.Is 2/18 in its simplest form? (a) Yes (b) No
  8. 8.Is 7/10 in its simplest form? (a) Yes (b) No
  9. 9.Is 8/18 in its simplest form? (a) No (b) Yes
  10. 10.Is 1/2 in its simplest form? (a) No (b) Yes
  11. 11.Is 8/12 in its simplest form? (a) Yes (b) No
  12. 12.Is 16/20 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 3 and 21?
  14. 14.Write 16/20 in its simplest form. =
  15. 15.Write 14/16 in its simplest form. =
  16. 16.What is the HCF of 6 and 42?
  17. 17.Is 3/21 in its simplest form? (a) Yes (b) No
  18. 18.Write 9/90 in its simplest form. =
  19. 19.What is the HCF of 20 and 32?
  20. 20.Write 42/49 in its simplest form. =
  21. 21.Write 4/14 in its simplest form. =
  22. 22.Write 18/24 in its simplest form. =
  23. 23.What is the HCF of 9 and 18?
  24. 24.Write 4/8 in its simplest form. =
  25. 25.Is 2/3 in its simplest form? (a) No (b) Yes
  26. 26.Is 2/7 in its simplest form? (a) Yes (b) No
  27. 27.Write 7/35 in its simplest form. =
  28. 28.What is the HCF of 35 and 56?
  29. 29.Is 8/20 in its simplest form? (a) Yes (b) No
  30. 30.What is the HCF of 6 and 8?
  31. 31.What is the HCF of 30 and 35?
  32. 32.Write 6/10 in its simplest form. =
  33. 33.What is the HCF of 21 and 27?
  34. 34.Write 25/30 in its simplest form. =
  35. 35.Is 15/25 in its simplest form? (a) Yes (b) No
  36. 36.Is 5/7 in its simplest form? (a) No (b) Yes
  37. 37.Write 4/12 in its simplest form. =
  38. 38.What is the HCF of 15 and 24?
  39. 39.Is 3/5 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 3 and 15?

Answer key

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

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