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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 865 · 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 6/9 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 63 and 70?
  3. 3.Is 3/7 in its simplest form? (a) No (b) Yes
  4. 4.Is 6/10 in its simplest form? (a) Yes (b) No
  5. 5.Write 4/10 in its simplest form. =
  6. 6.What is the HCF of 9 and 15?
  7. 7.Is 8/12 in its simplest form? (a) Yes (b) No
  8. 8.What is the HCF of 14 and 63?
  9. 9.What is the HCF of 18 and 21?
  10. 10.Is 9/12 in its simplest form? (a) No (b) Yes
  11. 11.What is the HCF of 8 and 56?
  12. 12.Is 12/40 in its simplest form? (a) No (b) Yes
  13. 13.Write 6/48 in its simplest form. =
  14. 14.What is the HCF of 45 and 72?
  15. 15.Write 20/36 in its simplest form. =
  16. 16.Is 12/28 in its simplest form? (a) Yes (b) No
  17. 17.Write 3/27 in its simplest form. =
  18. 18.Write 7/70 in its simplest form. =
  19. 19.Write 21/28 in its simplest form. =
  20. 20.Write 9/36 in its simplest form. =
  21. 21.What is the HCF of 6 and 12?
  22. 22.Is 1/3 in its simplest form? (a) No (b) Yes
  23. 23.Write 10/25 in its simplest form. =
  24. 24.Is 9/10 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 6 and 21?
  26. 26.Is 36/42 in its simplest form? (a) No (b) Yes
  27. 27.Write 18/63 in its simplest form. =
  28. 28.Is 9/21 in its simplest form? (a) No (b) Yes
  29. 29.Is 14/20 in its simplest form? (a) No (b) Yes
  30. 30.Is 1/4 in its simplest form? (a) Yes (b) No
  31. 31.What is the HCF of 16 and 40?
  32. 32.What is the HCF of 7 and 28?
  33. 33.What is the HCF of 36 and 42?
  34. 34.Is 1/2 in its simplest form? (a) Yes (b) No
  35. 35.Write 81/90 in its simplest form. =
  36. 36.Write 8/72 in its simplest form. =
  37. 37.What is the HCF of 16 and 36?
  38. 38.Write 18/27 in its simplest form. =
  39. 39.Write 20/25 in its simplest form. =
  40. 40.Write 9/24 in its simplest form. =

Answer key

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

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