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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 249 · 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 2/8 in its simplest form. =
  2. 2.Write 5/10 in its simplest form. =
  3. 3.Write 64/72 in its simplest form. =
  4. 4.What is the HCF of 30 and 42?
  5. 5.Is 1/3 in its simplest form? (a) No (b) Yes
  6. 6.Write 6/54 in its simplest form. =
  7. 7.Write 3/12 in its simplest form. =
  8. 8.What is the HCF of 25 and 30?
  9. 9.Write 8/64 in its simplest form. =
  10. 10.Is 2/9 in its simplest form? (a) No (b) Yes
  11. 11.What is the HCF of 9 and 45?
  12. 12.What is the HCF of 5 and 15?
  13. 13.Write 6/30 in its simplest form. =
  14. 14.What is the HCF of 10 and 18?
  15. 15.Write 27/36 in its simplest form. =
  16. 16.Is 5/45 in its simplest form? (a) Yes (b) No
  17. 17.Is 27/30 in its simplest form? (a) Yes (b) No
  18. 18.Write 12/30 in its simplest form. =
  19. 19.Write 12/28 in its simplest form. =
  20. 20.Is 4/24 in its simplest form? (a) Yes (b) No
  21. 21.Write 8/12 in its simplest form. =
  22. 22.Write 9/24 in its simplest form. =
  23. 23.Write 42/48 in its simplest form. =
  24. 24.What is the HCF of 27 and 45?
  25. 25.Write 8/20 in its simplest form. =
  26. 26.What is the HCF of 6 and 15?
  27. 27.What is the HCF of 12 and 28?
  28. 28.Write 5/20 in its simplest form. =
  29. 29.Is 12/40 in its simplest form? (a) Yes (b) No
  30. 30.Is 4/14 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 14 and 16?
  32. 32.Write 10/45 in its simplest form. =
  33. 33.Write 6/18 in its simplest form. =
  34. 34.Write 12/14 in its simplest form. =
  35. 35.What is the HCF of 14 and 35?
  36. 36.What is the HCF of 9 and 21?
  37. 37.What is the HCF of 32 and 40?
  38. 38.What is the HCF of 15 and 25?
  39. 39.Write 5/30 in its simplest form. =
  40. 40.What is the HCF of 64 and 72?

Answer key

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

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