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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 921 · 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 15 and 25?
  2. 2.Write 10/18 in its simplest form. =
  3. 3.What is the HCF of 15 and 24?
  4. 4.What is the HCF of 21 and 30?
  5. 5.What is the HCF of 9 and 54?
  6. 6.What is the HCF of 3 and 9?
  7. 7.Is 4/32 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 3 and 27?
  9. 9.What is the HCF of 4 and 24?
  10. 10.Write 16/56 in its simplest form. =
  11. 11.Write 8/28 in its simplest form. =
  12. 12.What is the HCF of 12 and 20?
  13. 13.What is the HCF of 8 and 14?
  14. 14.Write 10/16 in its simplest form. =
  15. 15.Is 1/3 in its simplest form? (a) Yes (b) No
  16. 16.Write 35/45 in its simplest form. =
  17. 17.Is 3/8 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 20 and 45?
  19. 19.Is 1/5 in its simplest form? (a) Yes (b) No
  20. 20.What is the HCF of 21 and 49?
  21. 21.Write 24/32 in its simplest form. =
  22. 22.What is the HCF of 63 and 81?
  23. 23.Write 3/15 in its simplest form. =
  24. 24.Write 18/21 in its simplest form. =
  25. 25.Write 18/48 in its simplest form. =
  26. 26.What is the HCF of 6 and 8?
  27. 27.Write 4/40 in its simplest form. =
  28. 28.Write 6/14 in its simplest form. =
  29. 29.What is the HCF of 8 and 80?
  30. 30.Is 10/25 in its simplest form? (a) No (b) Yes
  31. 31.Write 35/42 in its simplest form. =
  32. 32.Is 5/20 in its simplest form? (a) Yes (b) No
  33. 33.Write 63/90 in its simplest form. =
  34. 34.Is 1/6 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 3 and 12?
  36. 36.Is 8/9 in its simplest form? (a) Yes (b) No
  37. 37.Write 4/24 in its simplest form. =
  38. 38.Is 2/4 in its simplest form? (a) No (b) Yes
  39. 39.Is 3/5 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 12 and 54?

Answer key

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

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