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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 960 · 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 12/20 in its simplest form. =
  2. 2.Write 25/30 in its simplest form. =
  3. 3.Is 4/5 in its simplest form? (a) Yes (b) No
  4. 4.What is the HCF of 8 and 24?
  5. 5.What is the HCF of 28 and 32?
  6. 6.What is the HCF of 63 and 72?
  7. 7.What is the HCF of 9 and 27?
  8. 8.What is the HCF of 7 and 49?
  9. 9.Is 4/12 in its simplest form? (a) Yes (b) No
  10. 10.What is the HCF of 10 and 35?
  11. 11.Write 7/63 in its simplest form. =
  12. 12.Write 15/50 in its simplest form. =
  13. 13.Write 12/16 in its simplest form. =
  14. 14.What is the HCF of 5 and 10?
  15. 15.Write 24/40 in its simplest form. =
  16. 16.What is the HCF of 30 and 48?
  17. 17.Is 1/10 in its simplest form? (a) Yes (b) No
  18. 18.What is the HCF of 4 and 18?
  19. 19.What is the HCF of 3 and 30?
  20. 20.Write 8/16 in its simplest form. =
  21. 21.What is the HCF of 6 and 60?
  22. 22.Write 16/36 in its simplest form. =
  23. 23.Write 8/80 in its simplest form. =
  24. 24.What is the HCF of 15 and 24?
  25. 25.Is 14/16 in its simplest form? (a) Yes (b) No
  26. 26.Write 3/21 in its simplest form. =
  27. 27.Is 18/21 in its simplest form? (a) Yes (b) No
  28. 28.Write 12/18 in its simplest form. =
  29. 29.Write 7/14 in its simplest form. =
  30. 30.What is the HCF of 49 and 56?
  31. 31.Is 12/16 in its simplest form? (a) No (b) Yes
  32. 32.What is the HCF of 8 and 16?
  33. 33.Is 15/20 in its simplest form? (a) Yes (b) No
  34. 34.Is 2/5 in its simplest form? (a) No (b) Yes
  35. 35.Is 8/20 in its simplest form? (a) No (b) Yes
  36. 36.Write 63/70 in its simplest form. =
  37. 37.What is the HCF of 5 and 30?
  38. 38.What is the HCF of 48 and 54?
  39. 39.Is 5/7 in its simplest form? (a) Yes (b) No
  40. 40.Write 20/36 in its simplest form. =

Answer key

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

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