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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 828 · 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 1/5 in its simplest form? (a) Yes (b) No
  2. 2.Write 35/56 in its simplest form. =
  3. 3.Write 3/6 in its simplest form. =
  4. 4.What is the HCF of 6 and 12?
  5. 5.Is 9/10 in its simplest form? (a) Yes (b) No
  6. 6.What is the HCF of 40 and 45?
  7. 7.Write 6/14 in its simplest form. =
  8. 8.Is 5/15 in its simplest form? (a) No (b) Yes
  9. 9.Is 30/42 in its simplest form? (a) No (b) Yes
  10. 10.Is 4/5 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 2 and 20?
  12. 12.Is 2/9 in its simplest form? (a) No (b) Yes
  13. 13.Write 9/72 in its simplest form. =
  14. 14.What is the HCF of 15 and 20?
  15. 15.Write 24/27 in its simplest form. =
  16. 16.What is the HCF of 36 and 42?
  17. 17.Is 20/45 in its simplest form? (a) Yes (b) No
  18. 18.Is 3/7 in its simplest form? (a) No (b) Yes
  19. 19.Is 1/3 in its simplest form? (a) No (b) Yes
  20. 20.Is 7/10 in its simplest form? (a) No (b) Yes
  21. 21.What is the HCF of 3 and 18?
  22. 22.Is 9/21 in its simplest form? (a) Yes (b) No
  23. 23.What is the HCF of 48 and 56?
  24. 24.Write 9/15 in its simplest form. =
  25. 25.Is 5/7 in its simplest form? (a) No (b) Yes
  26. 26.Is 2/12 in its simplest form? (a) No (b) Yes
  27. 27.Write 2/4 in its simplest form. =
  28. 28.Write 4/28 in its simplest form. =
  29. 29.What is the HCF of 16 and 20?
  30. 30.Is 21/30 in its simplest form? (a) Yes (b) No
  31. 31.Write 8/24 in its simplest form. =
  32. 32.What is the HCF of 6 and 42?
  33. 33.Write 16/40 in its simplest form. =
  34. 34.Write 49/70 in its simplest form. =
  35. 35.Is 3/5 in its simplest form? (a) Yes (b) No
  36. 36.Write 7/21 in its simplest form. =
  37. 37.Is 6/16 in its simplest form? (a) No (b) Yes
  38. 38.What is the HCF of 12 and 18?
  39. 39.Write 8/20 in its simplest form. =
  40. 40.What is the HCF of 18 and 27?

Answer key

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

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