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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 140 · 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 12/20 in its simplest form. =
  2. 2.Is 2/9 in its simplest form? (a) No (b) Yes
  3. 3.Is 12/14 in its simplest form? (a) No (b) Yes
  4. 4.Write 42/54 in its simplest form. =
  5. 5.What is the HCF of 16 and 56?
  6. 6.Is 5/7 in its simplest form? (a) No (b) Yes
  7. 7.Is 1/9 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 16 and 72?
  9. 9.Is 7/9 in its simplest form? (a) No (b) Yes
  10. 10.Is 2/4 in its simplest form? (a) No (b) Yes
  11. 11.What is the HCF of 6 and 42?
  12. 12.Write 2/12 in its simplest form. =
  13. 13.Is 3/4 in its simplest form? (a) No (b) Yes
  14. 14.Write 24/54 in its simplest form. =
  15. 15.What is the HCF of 36 and 63?
  16. 16.Is 10/35 in its simplest form? (a) No (b) Yes
  17. 17.What is the HCF of 5 and 10?
  18. 18.Is 10/18 in its simplest form? (a) No (b) Yes
  19. 19.Write 32/40 in its simplest form. =
  20. 20.Write 7/56 in its simplest form. =
  21. 21.What is the HCF of 24 and 54?
  22. 22.Is 7/8 in its simplest form? (a) No (b) Yes
  23. 23.Write 20/25 in its simplest form. =
  24. 24.Is 1/7 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 2 and 10?
  26. 26.Write 25/35 in its simplest form. =
  27. 27.What is the HCF of 8 and 18?
  28. 28.What is the HCF of 20 and 45?
  29. 29.Is 24/42 in its simplest form? (a) No (b) Yes
  30. 30.Write 3/9 in its simplest form. =
  31. 31.What is the HCF of 25 and 40?
  32. 32.What is the HCF of 30 and 42?
  33. 33.What is the HCF of 6 and 10?
  34. 34.What is the HCF of 15 and 24?
  35. 35.Write 7/14 in its simplest form. =
  36. 36.What is the HCF of 8 and 10?
  37. 37.Is 18/42 in its simplest form? (a) Yes (b) No
  38. 38.Is 12/28 in its simplest form? (a) No (b) Yes
  39. 39.Is 1/8 in its simplest form? (a) Yes (b) No
  40. 40.Write 6/9 in its simplest form. =

Answer key

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

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