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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 192 · 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 4/6 in its simplest form. =
  2. 2.What is the HCF of 14 and 21?
  3. 3.What is the HCF of 20 and 32?
  4. 4.What is the HCF of 6 and 42?
  5. 5.What is the HCF of 20 and 25?
  6. 6.What is the HCF of 10 and 14?
  7. 7.Write 21/70 in its simplest form. =
  8. 8.Is 2/5 in its simplest form? (a) Yes (b) No
  9. 9.Write 10/14 in its simplest form. =
  10. 10.Write 45/50 in its simplest form. =
  11. 11.Write 24/32 in its simplest form. =
  12. 12.Write 4/12 in its simplest form. =
  13. 13.What is the HCF of 20 and 45?
  14. 14.Write 10/18 in its simplest form. =
  15. 15.Is 3/5 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 40 and 72?
  17. 17.Write 45/54 in its simplest form. =
  18. 18.Write 9/72 in its simplest form. =
  19. 19.Is 48/54 in its simplest form? (a) No (b) Yes
  20. 20.Is 1/2 in its simplest form? (a) Yes (b) No
  21. 21.Is 24/28 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 8 and 24?
  23. 23.Is 4/5 in its simplest form? (a) No (b) Yes
  24. 24.Is 7/10 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 42 and 60?
  26. 26.Write 5/20 in its simplest form. =
  27. 27.What is the HCF of 40 and 56?
  28. 28.Write 3/12 in its simplest form. =
  29. 29.Write 12/40 in its simplest form. =
  30. 30.Write 6/30 in its simplest form. =
  31. 31.What is the HCF of 9 and 15?
  32. 32.Write 6/54 in its simplest form. =
  33. 33.Write 5/15 in its simplest form. =
  34. 34.Write 12/27 in its simplest form. =
  35. 35.Is 27/30 in its simplest form? (a) Yes (b) No
  36. 36.What is the HCF of 6 and 16?
  37. 37.Is 6/15 in its simplest form? (a) No (b) Yes
  38. 38.What is the HCF of 10 and 16?
  39. 39.Is 8/9 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 4 and 12?

Answer key

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

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