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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 861 · 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 4/5 in its simplest form? (a) Yes (b) No
  2. 2.Write 4/40 in its simplest form. =
  3. 3.Write 9/54 in its simplest form. =
  4. 4.Is 7/10 in its simplest form? (a) No (b) Yes
  5. 5.Is 5/7 in its simplest form? (a) Yes (b) No
  6. 6.Is 35/45 in its simplest form? (a) No (b) Yes
  7. 7.Write 21/24 in its simplest form. =
  8. 8.Write 5/20 in its simplest form. =
  9. 9.Is 1/2 in its simplest form? (a) Yes (b) No
  10. 10.Is 3/8 in its simplest form? (a) No (b) Yes
  11. 11.Write 10/45 in its simplest form. =
  12. 12.Write 45/81 in its simplest form. =
  13. 13.Write 6/27 in its simplest form. =
  14. 14.Is 6/9 in its simplest form? (a) Yes (b) No
  15. 15.Write 20/25 in its simplest form. =
  16. 16.Write 27/30 in its simplest form. =
  17. 17.What is the HCF of 6 and 18?
  18. 18.Is 12/30 in its simplest form? (a) Yes (b) No
  19. 19.Write 24/56 in its simplest form. =
  20. 20.Is 7/9 in its simplest form? (a) Yes (b) No
  21. 21.Is 36/40 in its simplest form? (a) Yes (b) No
  22. 22.What is the HCF of 6 and 27?
  23. 23.What is the HCF of 6 and 16?
  24. 24.Is 3/15 in its simplest form? (a) Yes (b) No
  25. 25.Write 12/15 in its simplest form. =
  26. 26.What is the HCF of 49 and 56?
  27. 27.What is the HCF of 12 and 15?
  28. 28.Is 1/10 in its simplest form? (a) Yes (b) No
  29. 29.Is 20/28 in its simplest form? (a) No (b) Yes
  30. 30.Is 2/3 in its simplest form? (a) Yes (b) No
  31. 31.What is the HCF of 16 and 40?
  32. 32.Is 5/8 in its simplest form? (a) Yes (b) No
  33. 33.What is the HCF of 30 and 54?
  34. 34.Is 3/5 in its simplest form? (a) Yes (b) No
  35. 35.Write 48/54 in its simplest form. =
  36. 36.Is 10/15 in its simplest form? (a) No (b) Yes
  37. 37.Write 12/40 in its simplest form. =
  38. 38.Is 4/20 in its simplest form? (a) Yes (b) No
  39. 39.What is the HCF of 6 and 60?
  40. 40.Write 40/45 in its simplest form. =

Answer key

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

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