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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 874 · 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 3 and 9?
  2. 2.Is 24/30 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 5 and 35?
  4. 4.Is 40/45 in its simplest form? (a) Yes (b) No
  5. 5.Is 12/54 in its simplest form? (a) No (b) Yes
  6. 6.Write 10/16 in its simplest form. =
  7. 7.Write 4/36 in its simplest form. =
  8. 8.Is 4/9 in its simplest form? (a) Yes (b) No
  9. 9.Write 3/15 in its simplest form. =
  10. 10.Is 6/8 in its simplest form? (a) Yes (b) No
  11. 11.Write 49/63 in its simplest form. =
  12. 12.Is 7/10 in its simplest form? (a) No (b) Yes
  13. 13.Is 6/7 in its simplest form? (a) No (b) Yes
  14. 14.Write 8/14 in its simplest form. =
  15. 15.What is the HCF of 27 and 45?
  16. 16.Is 30/54 in its simplest form? (a) No (b) Yes
  17. 17.Is 5/9 in its simplest form? (a) Yes (b) No
  18. 18.Write 18/63 in its simplest form. =
  19. 19.Is 15/50 in its simplest form? (a) Yes (b) No
  20. 20.Write 4/20 in its simplest form. =
  21. 21.Is 2/16 in its simplest form? (a) No (b) Yes
  22. 22.Is 5/45 in its simplest form? (a) Yes (b) No
  23. 23.Write 48/54 in its simplest form. =
  24. 24.Write 27/30 in its simplest form. =
  25. 25.Is 1/4 in its simplest form? (a) No (b) Yes
  26. 26.What is the HCF of 9 and 12?
  27. 27.Write 6/30 in its simplest form. =
  28. 28.What is the HCF of 12 and 15?
  29. 29.What is the HCF of 36 and 40?
  30. 30.Write 45/50 in its simplest form. =
  31. 31.What is the HCF of 14 and 49?
  32. 32.Write 7/49 in its simplest form. =
  33. 33.Is 2/9 in its simplest form? (a) No (b) Yes
  34. 34.Is 1/9 in its simplest form? (a) Yes (b) No
  35. 35.Write 8/24 in its simplest form. =
  36. 36.What is the HCF of 18 and 48?
  37. 37.Is 4/20 in its simplest form? (a) No (b) Yes
  38. 38.Write 10/12 in its simplest form. =
  39. 39.What is the HCF of 18 and 63?
  40. 40.Write 40/45 in its simplest form. =

Answer key

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

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