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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 677 · 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 15/24 in its simplest form? (a) Yes (b) No
  2. 2.What is the HCF of 18 and 24?
  3. 3.Is 28/40 in its simplest form? (a) Yes (b) No
  4. 4.What is the HCF of 2 and 14?
  5. 5.Write 21/27 in its simplest form. =
  6. 6.What is the HCF of 20 and 45?
  7. 7.What is the HCF of 7 and 14?
  8. 8.Write 5/50 in its simplest form. =
  9. 9.What is the HCF of 36 and 42?
  10. 10.What is the HCF of 24 and 40?
  11. 11.What is the HCF of 24 and 28?
  12. 12.Is 6/54 in its simplest form? (a) No (b) Yes
  13. 13.Write 30/35 in its simplest form. =
  14. 14.Write 16/28 in its simplest form. =
  15. 15.What is the HCF of 18 and 60?
  16. 16.What is the HCF of 5 and 35?
  17. 17.Write 9/45 in its simplest form. =
  18. 18.What is the HCF of 8 and 20?
  19. 19.Write 14/21 in its simplest form. =
  20. 20.Write 10/18 in its simplest form. =
  21. 21.What is the HCF of 9 and 21?
  22. 22.Is 6/12 in its simplest form? (a) Yes (b) No
  23. 23.Write 5/20 in its simplest form. =
  24. 24.Write 12/21 in its simplest form. =
  25. 25.Is 3/24 in its simplest form? (a) Yes (b) No
  26. 26.Is 1/7 in its simplest form? (a) Yes (b) No
  27. 27.Write 10/14 in its simplest form. =
  28. 28.Write 24/40 in its simplest form. =
  29. 29.Write 81/90 in its simplest form. =
  30. 30.Write 48/54 in its simplest form. =
  31. 31.Is 9/21 in its simplest form? (a) Yes (b) No
  32. 32.What is the HCF of 7 and 28?
  33. 33.What is the HCF of 35 and 40?
  34. 34.Write 18/48 in its simplest form. =
  35. 35.What is the HCF of 24 and 32?
  36. 36.What is the HCF of 24 and 27?
  37. 37.Write 56/72 in its simplest form. =
  38. 38.Write 4/6 in its simplest form. =
  39. 39.Write 8/10 in its simplest form. =
  40. 40.Is 3/21 in its simplest form? (a) Yes (b) No

Answer key

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

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