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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 578 · 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 4 and 20?
  2. 2.What is the HCF of 24 and 32?
  3. 3.What is the HCF of 14 and 35?
  4. 4.Is 9/24 in its simplest form? (a) Yes (b) No
  5. 5.Write 42/48 in its simplest form. =
  6. 6.What is the HCF of 20 and 45?
  7. 7.Is 5/8 in its simplest form? (a) No (b) Yes
  8. 8.Write 20/36 in its simplest form. =
  9. 9.Is 1/4 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 5 and 10?
  11. 11.Write 14/35 in its simplest form. =
  12. 12.Is 15/18 in its simplest form? (a) Yes (b) No
  13. 13.Is 5/6 in its simplest form? (a) Yes (b) No
  14. 14.Write 10/45 in its simplest form. =
  15. 15.What is the HCF of 27 and 36?
  16. 16.Write 54/60 in its simplest form. =
  17. 17.What is the HCF of 32 and 40?
  18. 18.Is 30/54 in its simplest form? (a) No (b) Yes
  19. 19.What is the HCF of 9 and 54?
  20. 20.Write 32/40 in its simplest form. =
  21. 21.Is 15/24 in its simplest form? (a) Yes (b) No
  22. 22.Is 8/10 in its simplest form? (a) Yes (b) No
  23. 23.Is 3/4 in its simplest form? (a) No (b) Yes
  24. 24.Is 1/7 in its simplest form? (a) Yes (b) No
  25. 25.Write 30/35 in its simplest form. =
  26. 26.Write 2/10 in its simplest form. =
  27. 27.Write 4/18 in its simplest form. =
  28. 28.What is the HCF of 16 and 56?
  29. 29.Is 4/9 in its simplest form? (a) Yes (b) No
  30. 30.Is 6/8 in its simplest form? (a) No (b) Yes
  31. 31.Is 12/27 in its simplest form? (a) No (b) Yes
  32. 32.What is the HCF of 8 and 80?
  33. 33.What is the HCF of 63 and 72?
  34. 34.Write 72/80 in its simplest form. =
  35. 35.Write 8/20 in its simplest form. =
  36. 36.Write 18/48 in its simplest form. =
  37. 37.Is 8/9 in its simplest form? (a) Yes (b) No
  38. 38.Write 8/48 in its simplest form. =
  39. 39.Is 1/3 in its simplest form? (a) No (b) Yes
  40. 40.Write 8/64 in its simplest form. =

Answer key

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

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