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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 788 · 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 16 and 18?
  2. 2.Is 5/8 in its simplest form? (a) Yes (b) No
  3. 3.What is the HCF of 16 and 28?
  4. 4.Is 2/7 in its simplest form? (a) No (b) Yes
  5. 5.What is the HCF of 35 and 40?
  6. 6.What is the HCF of 28 and 49?
  7. 7.Write 24/30 in its simplest form. =
  8. 8.Write 15/21 in its simplest form. =
  9. 9.What is the HCF of 35 and 45?
  10. 10.Is 6/48 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 8 and 18?
  12. 12.Is 5/9 in its simplest form? (a) No (b) Yes
  13. 13.Is 5/35 in its simplest form? (a) Yes (b) No
  14. 14.Write 16/36 in its simplest form. =
  15. 15.Write 16/28 in its simplest form. =
  16. 16.Write 8/24 in its simplest form. =
  17. 17.Write 9/90 in its simplest form. =
  18. 18.What is the HCF of 40 and 72?
  19. 19.What is the HCF of 15 and 21?
  20. 20.Is 9/24 in its simplest form? (a) No (b) Yes
  21. 21.Is 5/6 in its simplest form? (a) Yes (b) No
  22. 22.What is the HCF of 28 and 40?
  23. 23.Write 3/6 in its simplest form. =
  24. 24.What is the HCF of 8 and 36?
  25. 25.Write 12/21 in its simplest form. =
  26. 26.What is the HCF of 10 and 15?
  27. 27.Write 9/81 in its simplest form. =
  28. 28.What is the HCF of 5 and 45?
  29. 29.Is 24/28 in its simplest form? (a) Yes (b) No
  30. 30.Is 12/16 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 2 and 20?
  32. 32.Is 21/30 in its simplest form? (a) Yes (b) No
  33. 33.Write 24/40 in its simplest form. =
  34. 34.Is 4/5 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 28 and 32?
  36. 36.What is the HCF of 6 and 48?
  37. 37.What is the HCF of 36 and 63?
  38. 38.What is the HCF of 24 and 42?
  39. 39.Write 6/36 in its simplest form. =
  40. 40.Is 42/48 in its simplest form? (a) Yes (b) No

Answer key

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

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