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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 342 · 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 6/7 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 32 and 40?
  3. 3.Write 24/54 in its simplest form. =
  4. 4.What is the HCF of 8 and 10?
  5. 5.What is the HCF of 15 and 25?
  6. 6.Is 14/20 in its simplest form? (a) Yes (b) No
  7. 7.Write 42/54 in its simplest form. =
  8. 8.What is the HCF of 12 and 40?
  9. 9.What is the HCF of 9 and 12?
  10. 10.Write 6/15 in its simplest form. =
  11. 11.Is 5/45 in its simplest form? (a) No (b) Yes
  12. 12.Is 24/28 in its simplest form? (a) Yes (b) No
  13. 13.Write 6/48 in its simplest form. =
  14. 14.Is 4/5 in its simplest form? (a) Yes (b) No
  15. 15.Write 12/21 in its simplest form. =
  16. 16.Is 24/27 in its simplest form? (a) No (b) Yes
  17. 17.Write 6/12 in its simplest form. =
  18. 18.Is 12/30 in its simplest form? (a) Yes (b) No
  19. 19.What is the HCF of 4 and 10?
  20. 20.Is 2/3 in its simplest form? (a) Yes (b) No
  21. 21.Write 6/9 in its simplest form. =
  22. 22.Write 24/27 in its simplest form. =
  23. 23.What is the HCF of 20 and 24?
  24. 24.Is 4/8 in its simplest form? (a) No (b) Yes
  25. 25.Write 12/30 in its simplest form. =
  26. 26.Is 4/40 in its simplest form? (a) Yes (b) No
  27. 27.Is 5/7 in its simplest form? (a) No (b) Yes
  28. 28.Is 3/18 in its simplest form? (a) Yes (b) No
  29. 29.Is 12/16 in its simplest form? (a) Yes (b) No
  30. 30.What is the HCF of 35 and 50?
  31. 31.Write 4/18 in its simplest form. =
  32. 32.Is 30/42 in its simplest form? (a) No (b) Yes
  33. 33.Is 5/40 in its simplest form? (a) No (b) Yes
  34. 34.Write 8/40 in its simplest form. =
  35. 35.What is the HCF of 8 and 48?
  36. 36.What is the HCF of 4 and 40?
  37. 37.What is the HCF of 6 and 20?
  38. 38.Is 5/8 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 7 and 49?
  40. 40.What is the HCF of 54 and 63?

Answer key

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

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