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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 82 · 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 45 and 50?
  2. 2.Is 6/20 in its simplest form? (a) Yes (b) No
  3. 3.Write 32/36 in its simplest form. =
  4. 4.Write 6/54 in its simplest form. =
  5. 5.Write 9/27 in its simplest form. =
  6. 6.What is the HCF of 18 and 45?
  7. 7.What is the HCF of 14 and 21?
  8. 8.What is the HCF of 16 and 40?
  9. 9.Write 7/14 in its simplest form. =
  10. 10.Is 5/20 in its simplest form? (a) Yes (b) No
  11. 11.Write 2/10 in its simplest form. =
  12. 12.Is 18/60 in its simplest form? (a) No (b) Yes
  13. 13.Is 4/12 in its simplest form? (a) Yes (b) No
  14. 14.Write 12/14 in its simplest form. =
  15. 15.Write 45/72 in its simplest form. =
  16. 16.Is 1/4 in its simplest form? (a) No (b) Yes
  17. 17.Write 9/15 in its simplest form. =
  18. 18.What is the HCF of 9 and 24?
  19. 19.What is the HCF of 6 and 9?
  20. 20.What is the HCF of 8 and 48?
  21. 21.Write 9/45 in its simplest form. =
  22. 22.Is 4/5 in its simplest form? (a) Yes (b) No
  23. 23.What is the HCF of 40 and 56?
  24. 24.Is 28/36 in its simplest form? (a) Yes (b) No
  25. 25.Is 8/9 in its simplest form? (a) No (b) Yes
  26. 26.Write 24/32 in its simplest form. =
  27. 27.Is 1/6 in its simplest form? (a) No (b) Yes
  28. 28.Write 3/30 in its simplest form. =
  29. 29.Write 56/64 in its simplest form. =
  30. 30.What is the HCF of 12 and 16?
  31. 31.What is the HCF of 8 and 64?
  32. 32.Is 35/40 in its simplest form? (a) No (b) Yes
  33. 33.Write 56/72 in its simplest form. =
  34. 34.Is 5/8 in its simplest form? (a) No (b) Yes
  35. 35.Write 18/20 in its simplest form. =
  36. 36.Is 3/24 in its simplest form? (a) No (b) Yes
  37. 37.Write 18/27 in its simplest form. =
  38. 38.Write 10/14 in its simplest form. =
  39. 39.Write 8/18 in its simplest form. =
  40. 40.Write 4/8 in its simplest form. =

Answer key

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

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