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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 523 · 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 1/10 in its simplest form? (a) Yes (b) No
  2. 2.Write 8/72 in its simplest form. =
  3. 3.Is 1/6 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 12 and 28?
  5. 5.Is 4/10 in its simplest form? (a) No (b) Yes
  6. 6.Write 21/35 in its simplest form. =
  7. 7.Write 42/60 in its simplest form. =
  8. 8.What is the HCF of 21 and 56?
  9. 9.Is 7/10 in its simplest form? (a) No (b) Yes
  10. 10.Is 3/18 in its simplest form? (a) No (b) Yes
  11. 11.Write 24/30 in its simplest form. =
  12. 12.What is the HCF of 16 and 40?
  13. 13.Is 5/6 in its simplest form? (a) No (b) Yes
  14. 14.Write 4/18 in its simplest form. =
  15. 15.Write 28/35 in its simplest form. =
  16. 16.Write 54/60 in its simplest form. =
  17. 17.Write 9/81 in its simplest form. =
  18. 18.Write 15/21 in its simplest form. =
  19. 19.Is 4/6 in its simplest form? (a) No (b) Yes
  20. 20.Is 2/7 in its simplest form? (a) No (b) Yes
  21. 21.Is 42/60 in its simplest form? (a) Yes (b) No
  22. 22.What is the HCF of 3 and 27?
  23. 23.Is 7/9 in its simplest form? (a) No (b) Yes
  24. 24.Write 6/12 in its simplest form. =
  25. 25.Is 6/9 in its simplest form? (a) Yes (b) No
  26. 26.Write 8/10 in its simplest form. =
  27. 27.What is the HCF of 15 and 18?
  28. 28.Is 28/32 in its simplest form? (a) Yes (b) No
  29. 29.Is 20/25 in its simplest form? (a) Yes (b) No
  30. 30.What is the HCF of 24 and 27?
  31. 31.What is the HCF of 15 and 35?
  32. 32.Write 27/45 in its simplest form. =
  33. 33.Is 5/8 in its simplest form? (a) Yes (b) No
  34. 34.Write 16/18 in its simplest form. =
  35. 35.Write 5/20 in its simplest form. =
  36. 36.Write 5/45 in its simplest form. =
  37. 37.Is 1/5 in its simplest form? (a) Yes (b) No
  38. 38.What is the HCF of 12 and 18?
  39. 39.What is the HCF of 18 and 60?
  40. 40.What is the HCF of 18 and 63?

Answer key

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

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