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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 256 · 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 20?
  2. 2.Write 5/25 in its simplest form. =
  3. 3.What is the HCF of 12 and 27?
  4. 4.What is the HCF of 8 and 28?
  5. 5.What is the HCF of 16 and 36?
  6. 6.Write 25/35 in its simplest form. =
  7. 7.What is the HCF of 12 and 21?
  8. 8.What is the HCF of 42 and 49?
  9. 9.What is the HCF of 27 and 30?
  10. 10.What is the HCF of 4 and 24?
  11. 11.What is the HCF of 8 and 24?
  12. 12.Is 12/54 in its simplest form? (a) No (b) Yes
  13. 13.Is 2/9 in its simplest form? (a) No (b) Yes
  14. 14.Write 18/45 in its simplest form. =
  15. 15.Is 2/7 in its simplest form? (a) No (b) Yes
  16. 16.Write 32/72 in its simplest form. =
  17. 17.What is the HCF of 21 and 56?
  18. 18.Is 18/48 in its simplest form? (a) No (b) Yes
  19. 19.What is the HCF of 3 and 15?
  20. 20.What is the HCF of 45 and 63?
  21. 21.What is the HCF of 10 and 14?
  22. 22.Is 4/7 in its simplest form? (a) No (b) Yes
  23. 23.Is 10/12 in its simplest form? (a) No (b) Yes
  24. 24.Is 1/5 in its simplest form? (a) Yes (b) No
  25. 25.Write 30/54 in its simplest form. =
  26. 26.Is 1/4 in its simplest form? (a) No (b) Yes
  27. 27.Write 16/36 in its simplest form. =
  28. 28.What is the HCF of 8 and 80?
  29. 29.What is the HCF of 20 and 35?
  30. 30.What is the HCF of 25 and 40?
  31. 31.What is the HCF of 5 and 30?
  32. 32.What is the HCF of 8 and 72?
  33. 33.Write 36/81 in its simplest form. =
  34. 34.What is the HCF of 7 and 35?
  35. 35.What is the HCF of 8 and 64?
  36. 36.Is 2/5 in its simplest form? (a) No (b) Yes
  37. 37.What is the HCF of 6 and 42?
  38. 38.Write 2/12 in its simplest form. =
  39. 39.What is the HCF of 32 and 36?
  40. 40.Write 8/24 in its simplest form. =

Answer key

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

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