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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 983 · 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 15/40 in its simplest form. =
  2. 2.What is the HCF of 9 and 24?
  3. 3.Is 16/18 in its simplest form? (a) Yes (b) No
  4. 4.What is the HCF of 28 and 36?
  5. 5.Write 12/40 in its simplest form. =
  6. 6.Is 2/9 in its simplest form? (a) No (b) Yes
  7. 7.Is 10/45 in its simplest form? (a) No (b) Yes
  8. 8.Write 3/30 in its simplest form. =
  9. 9.Is 4/14 in its simplest form? (a) Yes (b) No
  10. 10.Is 6/7 in its simplest form? (a) Yes (b) No
  11. 11.Write 24/40 in its simplest form. =
  12. 12.Write 9/90 in its simplest form. =
  13. 13.What is the HCF of 40 and 45?
  14. 14.Write 24/56 in its simplest form. =
  15. 15.Write 6/16 in its simplest form. =
  16. 16.Is 1/2 in its simplest form? (a) Yes (b) No
  17. 17.Is 1/8 in its simplest form? (a) No (b) Yes
  18. 18.Write 2/20 in its simplest form. =
  19. 19.Is 18/30 in its simplest form? (a) Yes (b) No
  20. 20.Write 24/42 in its simplest form. =
  21. 21.Write 21/56 in its simplest form. =
  22. 22.Is 4/16 in its simplest form? (a) Yes (b) No
  23. 23.What is the HCF of 10 and 15?
  24. 24.Write 12/42 in its simplest form. =
  25. 25.Is 5/8 in its simplest form? (a) Yes (b) No
  26. 26.Write 2/12 in its simplest form. =
  27. 27.What is the HCF of 28 and 49?
  28. 28.Write 10/14 in its simplest form. =
  29. 29.Write 7/21 in its simplest form. =
  30. 30.Is 1/6 in its simplest form? (a) No (b) Yes
  31. 31.Is 6/21 in its simplest form? (a) Yes (b) No
  32. 32.Write 24/27 in its simplest form. =
  33. 33.Is 7/10 in its simplest form? (a) Yes (b) No
  34. 34.Is 14/20 in its simplest form? (a) Yes (b) No
  35. 35.Write 18/27 in its simplest form. =
  36. 36.What is the HCF of 18 and 60?
  37. 37.What is the HCF of 24 and 40?
  38. 38.What is the HCF of 6 and 9?
  39. 39.Write 7/49 in its simplest form. =
  40. 40.What is the HCF of 14 and 35?

Answer key

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

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