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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 144 · 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.Is 4/5 in its simplest form? (a) Yes (b) No
  2. 2.Write 8/72 in its simplest form. =
  3. 3.What is the HCF of 2 and 12?
  4. 4.Write 8/16 in its simplest form. =
  5. 5.Is 5/8 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 8 and 36?
  7. 7.Is 8/20 in its simplest form? (a) No (b) Yes
  8. 8.Is 7/10 in its simplest form? (a) Yes (b) No
  9. 9.Write 12/27 in its simplest form. =
  10. 10.Write 9/81 in its simplest form. =
  11. 11.What is the HCF of 20 and 28?
  12. 12.Is 3/7 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 18 and 81?
  14. 14.Is 1/6 in its simplest form? (a) No (b) Yes
  15. 15.Write 18/30 in its simplest form. =
  16. 16.Write 4/6 in its simplest form. =
  17. 17.What is the HCF of 12 and 15?
  18. 18.Write 9/30 in its simplest form. =
  19. 19.What is the HCF of 49 and 63?
  20. 20.What is the HCF of 20 and 45?
  21. 21.Is 30/48 in its simplest form? (a) Yes (b) No
  22. 22.Write 9/27 in its simplest form. =
  23. 23.Write 7/63 in its simplest form. =
  24. 24.Is 15/21 in its simplest form? (a) Yes (b) No
  25. 25.Write 2/18 in its simplest form. =
  26. 26.Is 3/30 in its simplest form? (a) No (b) Yes
  27. 27.Is 2/3 in its simplest form? (a) Yes (b) No
  28. 28.What is the HCF of 42 and 48?
  29. 29.What is the HCF of 24 and 32?
  30. 30.Is 1/3 in its simplest form? (a) Yes (b) No
  31. 31.Write 7/14 in its simplest form. =
  32. 32.Is 1/10 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 7 and 42?
  34. 34.Write 20/25 in its simplest form. =
  35. 35.Write 2/10 in its simplest form. =
  36. 36.Is 6/27 in its simplest form? (a) No (b) Yes
  37. 37.What is the HCF of 10 and 16?
  38. 38.What is the HCF of 6 and 9?
  39. 39.Write 16/20 in its simplest form. =
  40. 40.What is the HCF of 36 and 63?

Answer key

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

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