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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 571 · 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 28 and 36?
  2. 2.Write 63/90 in its simplest form. =
  3. 3.Write 24/40 in its simplest form. =
  4. 4.Write 12/28 in its simplest form. =
  5. 5.Is 15/18 in its simplest form? (a) No (b) Yes
  6. 6.Is 12/40 in its simplest form? (a) No (b) Yes
  7. 7.Is 25/30 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 5 and 45?
  9. 9.Write 9/45 in its simplest form. =
  10. 10.Is 5/7 in its simplest form? (a) Yes (b) No
  11. 11.Is 12/28 in its simplest form? (a) No (b) Yes
  12. 12.Write 5/25 in its simplest form. =
  13. 13.Is 10/35 in its simplest form? (a) No (b) Yes
  14. 14.What is the HCF of 7 and 56?
  15. 15.Write 8/12 in its simplest form. =
  16. 16.Is 6/12 in its simplest form? (a) No (b) Yes
  17. 17.Write 3/21 in its simplest form. =
  18. 18.What is the HCF of 16 and 56?
  19. 19.Is 6/10 in its simplest form? (a) No (b) Yes
  20. 20.Write 4/6 in its simplest form. =
  21. 21.What is the HCF of 72 and 81?
  22. 22.What is the HCF of 5 and 10?
  23. 23.Is 6/18 in its simplest form? (a) No (b) Yes
  24. 24.Write 25/35 in its simplest form. =
  25. 25.Write 20/36 in its simplest form. =
  26. 26.What is the HCF of 32 and 40?
  27. 27.Is 12/18 in its simplest form? (a) No (b) Yes
  28. 28.What is the HCF of 35 and 49?
  29. 29.Write 16/20 in its simplest form. =
  30. 30.Write 9/24 in its simplest form. =
  31. 31.What is the HCF of 24 and 80?
  32. 32.Write 8/14 in its simplest form. =
  33. 33.Is 1/10 in its simplest form? (a) Yes (b) No
  34. 34.Is 2/3 in its simplest form? (a) No (b) Yes
  35. 35.Is 3/8 in its simplest form? (a) Yes (b) No
  36. 36.What is the HCF of 30 and 42?
  37. 37.Write 27/72 in its simplest form. =
  38. 38.Write 16/24 in its simplest form. =
  39. 39.Write 24/30 in its simplest form. =
  40. 40.Is 1/4 in its simplest form? (a) No (b) Yes

Answer key

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

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