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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 663 · 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 8/36 in its simplest form? (a) Yes (b) No
  2. 2.Write 4/28 in its simplest form. =
  3. 3.Write 12/15 in its simplest form. =
  4. 4.Write 27/90 in its simplest form. =
  5. 5.What is the HCF of 6 and 27?
  6. 6.Is 1/5 in its simplest form? (a) Yes (b) No
  7. 7.Is 6/36 in its simplest form? (a) Yes (b) No
  8. 8.What is the HCF of 24 and 80?
  9. 9.What is the HCF of 3 and 6?
  10. 10.Is 18/48 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 4 and 8?
  12. 12.Write 28/32 in its simplest form. =
  13. 13.Write 6/54 in its simplest form. =
  14. 14.Write 49/70 in its simplest form. =
  15. 15.Is 1/9 in its simplest form? (a) Yes (b) No
  16. 16.Is 30/54 in its simplest form? (a) Yes (b) No
  17. 17.Write 54/63 in its simplest form. =
  18. 18.Write 12/54 in its simplest form. =
  19. 19.What is the HCF of 9 and 15?
  20. 20.What is the HCF of 9 and 63?
  21. 21.Is 3/7 in its simplest form? (a) Yes (b) No
  22. 22.Is 6/7 in its simplest form? (a) No (b) Yes
  23. 23.Is 2/18 in its simplest form? (a) No (b) Yes
  24. 24.Is 15/40 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 12 and 15?
  26. 26.Write 21/35 in its simplest form. =
  27. 27.What is the HCF of 3 and 21?
  28. 28.Write 24/27 in its simplest form. =
  29. 29.What is the HCF of 12 and 16?
  30. 30.What is the HCF of 2 and 6?
  31. 31.What is the HCF of 12 and 40?
  32. 32.Is 2/16 in its simplest form? (a) Yes (b) No
  33. 33.Write 48/56 in its simplest form. =
  34. 34.Write 9/90 in its simplest form. =
  35. 35.What is the HCF of 4 and 12?
  36. 36.Is 2/3 in its simplest form? (a) No (b) Yes
  37. 37.What is the HCF of 14 and 20?
  38. 38.Is 2/5 in its simplest form? (a) No (b) Yes
  39. 39.Is 42/48 in its simplest form? (a) No (b) Yes
  40. 40.Write 72/81 in its simplest form. =

Answer key

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

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