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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 658 · 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.Write 10/18 in its simplest form. =
  2. 2.What is the HCF of 40 and 64?
  3. 3.Write 3/12 in its simplest form. =
  4. 4.What is the HCF of 7 and 42?
  5. 5.Is 4/24 in its simplest form? (a) No (b) Yes
  6. 6.Write 72/81 in its simplest form. =
  7. 7.Write 4/16 in its simplest form. =
  8. 8.Write 28/32 in its simplest form. =
  9. 9.Write 21/70 in its simplest form. =
  10. 10.Is 5/8 in its simplest form? (a) No (b) Yes
  11. 11.What is the HCF of 12 and 14?
  12. 12.What is the HCF of 16 and 18?
  13. 13.What is the HCF of 56 and 63?
  14. 14.Is 1/3 in its simplest form? (a) No (b) Yes
  15. 15.Is 2/5 in its simplest form? (a) No (b) Yes
  16. 16.Write 12/21 in its simplest form. =
  17. 17.Is 24/28 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 25 and 40?
  19. 19.Is 6/9 in its simplest form? (a) No (b) Yes
  20. 20.What is the HCF of 49 and 70?
  21. 21.Is 8/36 in its simplest form? (a) Yes (b) No
  22. 22.What is the HCF of 14 and 16?
  23. 23.Is 15/40 in its simplest form? (a) No (b) Yes
  24. 24.Is 3/27 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 6 and 20?
  26. 26.Is 7/10 in its simplest form? (a) No (b) Yes
  27. 27.Is 3/10 in its simplest form? (a) No (b) Yes
  28. 28.What is the HCF of 14 and 21?
  29. 29.Is 10/45 in its simplest form? (a) No (b) Yes
  30. 30.Is 21/30 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 3 and 24?
  32. 32.What is the HCF of 25 and 35?
  33. 33.Is 6/54 in its simplest form? (a) No (b) Yes
  34. 34.Write 8/36 in its simplest form. =
  35. 35.Write 16/18 in its simplest form. =
  36. 36.What is the HCF of 4 and 8?
  37. 37.What is the HCF of 24 and 40?
  38. 38.Write 5/25 in its simplest form. =
  39. 39.What is the HCF of 8 and 40?
  40. 40.Write 18/45 in its simplest form. =

Answer key

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

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