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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 845 · 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 15/25 in its simplest form. =
  2. 2.Write 12/27 in its simplest form. =
  3. 3.Write 5/15 in its simplest form. =
  4. 4.What is the HCF of 40 and 48?
  5. 5.What is the HCF of 8 and 14?
  6. 6.Is 12/20 in its simplest form? (a) No (b) Yes
  7. 7.Write 10/12 in its simplest form. =
  8. 8.Write 2/8 in its simplest form. =
  9. 9.What is the HCF of 10 and 18?
  10. 10.Is 6/9 in its simplest form? (a) No (b) Yes
  11. 11.What is the HCF of 7 and 35?
  12. 12.Is 2/8 in its simplest form? (a) Yes (b) No
  13. 13.What is the HCF of 24 and 56?
  14. 14.Write 10/18 in its simplest form. =
  15. 15.Is 1/10 in its simplest form? (a) Yes (b) No
  16. 16.Is 1/2 in its simplest form? (a) No (b) Yes
  17. 17.Is 7/9 in its simplest form? (a) No (b) Yes
  18. 18.Write 8/14 in its simplest form. =
  19. 19.What is the HCF of 3 and 21?
  20. 20.Write 16/40 in its simplest form. =
  21. 21.Is 1/5 in its simplest form? (a) No (b) Yes
  22. 22.Write 63/81 in its simplest form. =
  23. 23.What is the HCF of 2 and 12?
  24. 24.What is the HCF of 20 and 25?
  25. 25.Is 4/8 in its simplest form? (a) Yes (b) No
  26. 26.What is the HCF of 45 and 63?
  27. 27.What is the HCF of 9 and 45?
  28. 28.Is 3/5 in its simplest form? (a) No (b) Yes
  29. 29.Write 6/36 in its simplest form. =
  30. 30.Write 10/45 in its simplest form. =
  31. 31.Write 24/42 in its simplest form. =
  32. 32.What is the HCF of 6 and 8?
  33. 33.Is 5/9 in its simplest form? (a) No (b) Yes
  34. 34.Write 20/24 in its simplest form. =
  35. 35.Write 16/56 in its simplest form. =
  36. 36.What is the HCF of 6 and 30?
  37. 37.Write 32/72 in its simplest form. =
  38. 38.What is the HCF of 2 and 10?
  39. 39.Is 7/8 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 5 and 15?

Answer key

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

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