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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 884 · 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 24 and 40?
  2. 2.Is 1/9 in its simplest form? (a) No (b) Yes
  3. 3.Is 12/20 in its simplest form? (a) Yes (b) No
  4. 4.What is the HCF of 9 and 27?
  5. 5.What is the HCF of 15 and 35?
  6. 6.What is the HCF of 40 and 64?
  7. 7.What is the HCF of 25 and 40?
  8. 8.What is the HCF of 12 and 40?
  9. 9.What is the HCF of 15 and 20?
  10. 10.What is the HCF of 6 and 15?
  11. 11.What is the HCF of 21 and 30?
  12. 12.Write 4/24 in its simplest form. =
  13. 13.What is the HCF of 7 and 49?
  14. 14.Write 10/45 in its simplest form. =
  15. 15.Is 4/12 in its simplest form? (a) Yes (b) No
  16. 16.Write 27/45 in its simplest form. =
  17. 17.Write 9/24 in its simplest form. =
  18. 18.What is the HCF of 6 and 48?
  19. 19.Is 3/7 in its simplest form? (a) Yes (b) No
  20. 20.What is the HCF of 7 and 21?
  21. 21.Write 32/56 in its simplest form. =
  22. 22.What is the HCF of 4 and 6?
  23. 23.Is 2/3 in its simplest form? (a) No (b) Yes
  24. 24.What is the HCF of 12 and 27?
  25. 25.What is the HCF of 6 and 14?
  26. 26.What is the HCF of 2 and 8?
  27. 27.What is the HCF of 10 and 12?
  28. 28.Write 5/35 in its simplest form. =
  29. 29.Is 1/8 in its simplest form? (a) Yes (b) No
  30. 30.Is 3/8 in its simplest form? (a) Yes (b) No
  31. 31.Write 40/56 in its simplest form. =
  32. 32.Is 5/6 in its simplest form? (a) Yes (b) No
  33. 33.Is 3/4 in its simplest form? (a) Yes (b) No
  34. 34.Write 16/72 in its simplest form. =
  35. 35.What is the HCF of 18 and 27?
  36. 36.What is the HCF of 9 and 21?
  37. 37.What is the HCF of 3 and 15?
  38. 38.Write 4/36 in its simplest form. =
  39. 39.What is the HCF of 21 and 49?
  40. 40.Write 16/40 in its simplest form. =

Answer key

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

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