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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 560 · 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.What is the HCF of 6 and 16?
  2. 2.What is the HCF of 4 and 18?
  3. 3.Is 2/7 in its simplest form? (a) No (b) Yes
  4. 4.Write 8/32 in its simplest form. =
  5. 5.What is the HCF of 21 and 30?
  6. 6.What is the HCF of 3 and 9?
  7. 7.Write 12/42 in its simplest form. =
  8. 8.What is the HCF of 4 and 10?
  9. 9.What is the HCF of 3 and 18?
  10. 10.Is 3/9 in its simplest form? (a) No (b) Yes
  11. 11.Write 30/54 in its simplest form. =
  12. 12.Is 6/21 in its simplest form? (a) Yes (b) No
  13. 13.What is the HCF of 15 and 24?
  14. 14.Write 24/30 in its simplest form. =
  15. 15.Write 5/30 in its simplest form. =
  16. 16.Write 6/21 in its simplest form. =
  17. 17.Is 48/54 in its simplest form? (a) No (b) Yes
  18. 18.Is 12/16 in its simplest form? (a) No (b) Yes
  19. 19.Is 5/8 in its simplest form? (a) Yes (b) No
  20. 20.What is the HCF of 9 and 12?
  21. 21.Write 8/14 in its simplest form. =
  22. 22.What is the HCF of 63 and 81?
  23. 23.Write 15/21 in its simplest form. =
  24. 24.What is the HCF of 12 and 30?
  25. 25.Write 3/21 in its simplest form. =
  26. 26.Is 1/2 in its simplest form? (a) Yes (b) No
  27. 27.What is the HCF of 9 and 30?
  28. 28.Write 25/40 in its simplest form. =
  29. 29.What is the HCF of 3 and 21?
  30. 30.What is the HCF of 56 and 63?
  31. 31.What is the HCF of 4 and 20?
  32. 32.Write 56/72 in its simplest form. =
  33. 33.Is 3/5 in its simplest form? (a) Yes (b) No
  34. 34.Is 5/7 in its simplest form? (a) No (b) Yes
  35. 35.Is 2/9 in its simplest form? (a) No (b) Yes
  36. 36.Write 9/30 in its simplest form. =
  37. 37.Write 4/16 in its simplest form. =
  38. 38.Is 1/6 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 9 and 15?
  40. 40.Write 8/36 in its simplest form. =

Answer key

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

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