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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 889 · 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 12/18 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 8 and 16?
  3. 3.What is the HCF of 8 and 64?
  4. 4.What is the HCF of 18 and 81?
  5. 5.Write 40/64 in its simplest form. =
  6. 6.Is 4/12 in its simplest form? (a) Yes (b) No
  7. 7.Write 9/15 in its simplest form. =
  8. 8.Is 6/8 in its simplest form? (a) No (b) Yes
  9. 9.Is 15/25 in its simplest form? (a) No (b) Yes
  10. 10.Write 8/10 in its simplest form. =
  11. 11.Is 1/10 in its simplest form? (a) No (b) Yes
  12. 12.What is the HCF of 4 and 36?
  13. 13.Is 1/2 in its simplest form? (a) No (b) Yes
  14. 14.Is 8/12 in its simplest form? (a) Yes (b) No
  15. 15.Is 2/7 in its simplest form? (a) Yes (b) No
  16. 16.Is 36/42 in its simplest form? (a) Yes (b) No
  17. 17.Is 6/18 in its simplest form? (a) Yes (b) No
  18. 18.Write 18/45 in its simplest form. =
  19. 19.What is the HCF of 18 and 48?
  20. 20.Write 5/15 in its simplest form. =
  21. 21.What is the HCF of 40 and 48?
  22. 22.Write 12/16 in its simplest form. =
  23. 23.Write 24/32 in its simplest form. =
  24. 24.Write 6/20 in its simplest form. =
  25. 25.What is the HCF of 12 and 32?
  26. 26.Is 15/18 in its simplest form? (a) No (b) Yes
  27. 27.Write 49/63 in its simplest form. =
  28. 28.Is 3/24 in its simplest form? (a) Yes (b) No
  29. 29.Is 7/10 in its simplest form? (a) No (b) Yes
  30. 30.Is 8/14 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 4 and 6?
  32. 32.What is the HCF of 35 and 50?
  33. 33.Write 8/32 in its simplest form. =
  34. 34.What is the HCF of 6 and 18?
  35. 35.What is the HCF of 48 and 56?
  36. 36.What is the HCF of 10 and 14?
  37. 37.Is 15/40 in its simplest form? (a) No (b) Yes
  38. 38.Is 1/6 in its simplest form? (a) Yes (b) No
  39. 39.Is 12/14 in its simplest form? (a) No (b) Yes
  40. 40.Write 4/36 in its simplest form. =

Answer key

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

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