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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 311 · 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 8/72 in its simplest form. =
  2. 2.What is the HCF of 21 and 28?
  3. 3.What is the HCF of 48 and 56?
  4. 4.What is the HCF of 24 and 80?
  5. 5.Is 5/40 in its simplest form? (a) Yes (b) No
  6. 6.What is the HCF of 3 and 12?
  7. 7.What is the HCF of 7 and 70?
  8. 8.What is the HCF of 6 and 54?
  9. 9.Write 9/36 in its simplest form. =
  10. 10.What is the HCF of 9 and 21?
  11. 11.Is 18/48 in its simplest form? (a) Yes (b) No
  12. 12.Is 48/54 in its simplest form? (a) Yes (b) No
  13. 13.Is 36/42 in its simplest form? (a) Yes (b) No
  14. 14.What is the HCF of 9 and 36?
  15. 15.What is the HCF of 12 and 54?
  16. 16.What is the HCF of 16 and 40?
  17. 17.What is the HCF of 3 and 24?
  18. 18.Is 7/9 in its simplest form? (a) Yes (b) No
  19. 19.Is 2/3 in its simplest form? (a) No (b) Yes
  20. 20.Write 63/70 in its simplest form. =
  21. 21.Is 5/9 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 6 and 12?
  23. 23.Is 12/30 in its simplest form? (a) Yes (b) No
  24. 24.Is 7/10 in its simplest form? (a) No (b) Yes
  25. 25.Write 4/28 in its simplest form. =
  26. 26.Is 9/24 in its simplest form? (a) Yes (b) No
  27. 27.What is the HCF of 12 and 32?
  28. 28.Is 4/9 in its simplest form? (a) Yes (b) No
  29. 29.Write 36/63 in its simplest form. =
  30. 30.What is the HCF of 32 and 72?
  31. 31.Is 9/21 in its simplest form? (a) Yes (b) No
  32. 32.What is the HCF of 6 and 16?
  33. 33.Write 10/14 in its simplest form. =
  34. 34.Write 8/24 in its simplest form. =
  35. 35.Is 4/7 in its simplest form? (a) No (b) Yes
  36. 36.Is 1/3 in its simplest form? (a) No (b) Yes
  37. 37.Write 5/10 in its simplest form. =
  38. 38.Is 2/7 in its simplest form? (a) Yes (b) No
  39. 39.Is 7/8 in its simplest form? (a) Yes (b) No
  40. 40.Is 21/27 in its simplest form? (a) No (b) Yes

Answer key

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

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