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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 615 · 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.Is 9/10 in its simplest form? (a) Yes (b) No
  2. 2.Is 4/24 in its simplest form? (a) No (b) Yes
  3. 3.Is 2/6 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 8 and 10?
  5. 5.Is 6/60 in its simplest form? (a) No (b) Yes
  6. 6.Write 10/12 in its simplest form. =
  7. 7.Is 2/7 in its simplest form? (a) Yes (b) No
  8. 8.Is 4/16 in its simplest form? (a) Yes (b) No
  9. 9.What is the HCF of 8 and 36?
  10. 10.Write 21/49 in its simplest form. =
  11. 11.Write 6/60 in its simplest form. =
  12. 12.What is the HCF of 15 and 40?
  13. 13.What is the HCF of 6 and 10?
  14. 14.Is 4/10 in its simplest form? (a) No (b) Yes
  15. 15.Is 21/30 in its simplest form? (a) Yes (b) No
  16. 16.What is the HCF of 27 and 45?
  17. 17.Write 14/20 in its simplest form. =
  18. 18.Write 35/49 in its simplest form. =
  19. 19.Write 7/63 in its simplest form. =
  20. 20.Write 25/45 in its simplest form. =
  21. 21.Is 14/16 in its simplest form? (a) No (b) Yes
  22. 22.Write 16/20 in its simplest form. =
  23. 23.What is the HCF of 54 and 63?
  24. 24.Write 3/21 in its simplest form. =
  25. 25.Write 12/21 in its simplest form. =
  26. 26.Write 36/42 in its simplest form. =
  27. 27.What is the HCF of 15 and 50?
  28. 28.What is the HCF of 36 and 40?
  29. 29.Write 12/30 in its simplest form. =
  30. 30.Write 36/45 in its simplest form. =
  31. 31.What is the HCF of 9 and 12?
  32. 32.What is the HCF of 10 and 15?
  33. 33.Write 6/42 in its simplest form. =
  34. 34.Write 63/81 in its simplest form. =
  35. 35.What is the HCF of 35 and 50?
  36. 36.Write 21/35 in its simplest form. =
  37. 37.What is the HCF of 4 and 40?
  38. 38.Write 8/36 in its simplest form. =
  39. 39.What is the HCF of 18 and 24?
  40. 40.What is the HCF of 15 and 21?

Answer key

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

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