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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 53 · 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.Write 6/14 in its simplest form. =
  2. 2.What is the HCF of 3 and 24?
  3. 3.What is the HCF of 35 and 40?
  4. 4.What is the HCF of 3 and 6?
  5. 5.What is the HCF of 10 and 12?
  6. 6.What is the HCF of 12 and 14?
  7. 7.Is 12/20 in its simplest form? (a) No (b) Yes
  8. 8.Is 6/9 in its simplest form? (a) No (b) Yes
  9. 9.Write 12/28 in its simplest form. =
  10. 10.What is the HCF of 3 and 9?
  11. 11.Is 18/24 in its simplest form? (a) Yes (b) No
  12. 12.Is 4/10 in its simplest form? (a) Yes (b) No
  13. 13.Is 3/21 in its simplest form? (a) No (b) Yes
  14. 14.Write 5/35 in its simplest form. =
  15. 15.Is 3/7 in its simplest form? (a) Yes (b) No
  16. 16.Is 1/3 in its simplest form? (a) No (b) Yes
  17. 17.Write 30/35 in its simplest form. =
  18. 18.What is the HCF of 18 and 20?
  19. 19.Write 4/8 in its simplest form. =
  20. 20.Write 15/50 in its simplest form. =
  21. 21.Is 4/28 in its simplest form? (a) No (b) Yes
  22. 22.Write 10/25 in its simplest form. =
  23. 23.Write 18/30 in its simplest form. =
  24. 24.Is 4/12 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 2 and 20?
  26. 26.Is 6/12 in its simplest form? (a) No (b) Yes
  27. 27.What is the HCF of 7 and 63?
  28. 28.Is 4/8 in its simplest form? (a) No (b) Yes
  29. 29.Is 9/10 in its simplest form? (a) Yes (b) No
  30. 30.Write 2/16 in its simplest form. =
  31. 31.What is the HCF of 12 and 54?
  32. 32.What is the HCF of 8 and 12?
  33. 33.Write 42/60 in its simplest form. =
  34. 34.Is 2/9 in its simplest form? (a) No (b) Yes
  35. 35.Is 1/9 in its simplest form? (a) No (b) Yes
  36. 36.Is 18/20 in its simplest form? (a) No (b) Yes
  37. 37.Write 4/40 in its simplest form. =
  38. 38.Write 42/49 in its simplest form. =
  39. 39.Is 6/7 in its simplest form? (a) No (b) Yes
  40. 40.Write 15/25 in its simplest form. =

Answer key

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

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