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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 463 · 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 24 and 27?
  2. 2.Write 14/21 in its simplest form. =
  3. 3.What is the HCF of 4 and 18?
  4. 4.Write 8/18 in its simplest form. =
  5. 5.Is 3/10 in its simplest form? (a) No (b) Yes
  6. 6.Is 6/7 in its simplest form? (a) Yes (b) No
  7. 7.Is 4/5 in its simplest form? (a) Yes (b) No
  8. 8.What is the HCF of 5 and 20?
  9. 9.Is 1/5 in its simplest form? (a) No (b) Yes
  10. 10.Is 8/9 in its simplest form? (a) No (b) Yes
  11. 11.Is 2/8 in its simplest form? (a) Yes (b) No
  12. 12.Write 10/45 in its simplest form. =
  13. 13.What is the HCF of 36 and 45?
  14. 14.Is 15/40 in its simplest form? (a) No (b) Yes
  15. 15.Is 2/4 in its simplest form? (a) Yes (b) No
  16. 16.Write 56/64 in its simplest form. =
  17. 17.Write 16/18 in its simplest form. =
  18. 18.Is 6/21 in its simplest form? (a) Yes (b) No
  19. 19.Write 4/16 in its simplest form. =
  20. 20.Write 4/6 in its simplest form. =
  21. 21.Write 3/18 in its simplest form. =
  22. 22.What is the HCF of 14 and 35?
  23. 23.What is the HCF of 5 and 40?
  24. 24.Is 5/7 in its simplest form? (a) Yes (b) No
  25. 25.Is 5/8 in its simplest form? (a) Yes (b) No
  26. 26.Is 4/9 in its simplest form? (a) Yes (b) No
  27. 27.Write 16/72 in its simplest form. =
  28. 28.Write 3/12 in its simplest form. =
  29. 29.What is the HCF of 27 and 63?
  30. 30.What is the HCF of 3 and 30?
  31. 31.Write 15/25 in its simplest form. =
  32. 32.Write 20/32 in its simplest form. =
  33. 33.Write 14/16 in its simplest form. =
  34. 34.Write 6/9 in its simplest form. =
  35. 35.What is the HCF of 9 and 30?
  36. 36.Is 2/12 in its simplest form? (a) No (b) Yes
  37. 37.What is the HCF of 8 and 64?
  38. 38.Write 8/36 in its simplest form. =
  39. 39.Write 9/63 in its simplest form. =
  40. 40.Write 24/28 in its simplest form. =

Answer key

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

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