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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 524 · 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.Write 5/10 in its simplest form. =
  2. 2.Write 2/18 in its simplest form. =
  3. 3.Write 5/30 in its simplest form. =
  4. 4.What is the HCF of 15 and 27?
  5. 5.Write 24/54 in its simplest form. =
  6. 6.What is the HCF of 5 and 20?
  7. 7.Is 2/3 in its simplest form? (a) Yes (b) No
  8. 8.Write 4/18 in its simplest form. =
  9. 9.Write 12/15 in its simplest form. =
  10. 10.What is the HCF of 20 and 32?
  11. 11.Is 1/5 in its simplest form? (a) Yes (b) No
  12. 12.What is the HCF of 10 and 14?
  13. 13.What is the HCF of 6 and 9?
  14. 14.Is 1/6 in its simplest form? (a) No (b) Yes
  15. 15.Is 4/40 in its simplest form? (a) No (b) Yes
  16. 16.Is 5/9 in its simplest form? (a) Yes (b) No
  17. 17.Is 7/10 in its simplest form? (a) Yes (b) No
  18. 18.Is 16/20 in its simplest form? (a) No (b) Yes
  19. 19.What is the HCF of 45 and 81?
  20. 20.What is the HCF of 6 and 15?
  21. 21.What is the HCF of 18 and 27?
  22. 22.What is the HCF of 32 and 72?
  23. 23.Is 2/5 in its simplest form? (a) No (b) Yes
  24. 24.Write 35/63 in its simplest form. =
  25. 25.What is the HCF of 28 and 35?
  26. 26.Write 24/30 in its simplest form. =
  27. 27.What is the HCF of 16 and 28?
  28. 28.What is the HCF of 9 and 12?
  29. 29.What is the HCF of 6 and 27?
  30. 30.Is 32/36 in its simplest form? (a) No (b) Yes
  31. 31.Write 5/40 in its simplest form. =
  32. 32.What is the HCF of 28 and 40?
  33. 33.What is the HCF of 2 and 8?
  34. 34.Is 2/7 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 6 and 54?
  36. 36.Is 12/28 in its simplest form? (a) Yes (b) No
  37. 37.Write 25/45 in its simplest form. =
  38. 38.Write 9/21 in its simplest form. =
  39. 39.Is 7/9 in its simplest form? (a) No (b) Yes
  40. 40.Write 6/16 in its simplest form. =

Answer key

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

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