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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 691 · 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.What is the HCF of 6 and 21?
  2. 2.Is 25/45 in its simplest form? (a) Yes (b) No
  3. 3.What is the HCF of 12 and 18?
  4. 4.Is 1/9 in its simplest form? (a) Yes (b) No
  5. 5.Write 24/30 in its simplest form. =
  6. 6.Write 56/72 in its simplest form. =
  7. 7.Write 6/10 in its simplest form. =
  8. 8.Is 3/12 in its simplest form? (a) No (b) Yes
  9. 9.Is 9/10 in its simplest form? (a) Yes (b) No
  10. 10.Write 16/24 in its simplest form. =
  11. 11.Is 4/18 in its simplest form? (a) No (b) Yes
  12. 12.Is 3/10 in its simplest form? (a) Yes (b) No
  13. 13.Write 42/60 in its simplest form. =
  14. 14.What is the HCF of 5 and 10?
  15. 15.What is the HCF of 63 and 70?
  16. 16.Is 7/8 in its simplest form? (a) No (b) Yes
  17. 17.What is the HCF of 28 and 32?
  18. 18.Write 40/72 in its simplest form. =
  19. 19.Write 81/90 in its simplest form. =
  20. 20.Write 16/18 in its simplest form. =
  21. 21.Is 30/54 in its simplest form? (a) No (b) Yes
  22. 22.Write 8/12 in its simplest form. =
  23. 23.Write 27/36 in its simplest form. =
  24. 24.Write 18/30 in its simplest form. =
  25. 25.Write 16/28 in its simplest form. =
  26. 26.Write 6/16 in its simplest form. =
  27. 27.Is 6/8 in its simplest form? (a) Yes (b) No
  28. 28.What is the HCF of 10 and 25?
  29. 29.Write 3/24 in its simplest form. =
  30. 30.What is the HCF of 6 and 10?
  31. 31.Write 12/15 in its simplest form. =
  32. 32.Is 8/18 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 35 and 50?
  34. 34.Is 15/25 in its simplest form? (a) No (b) Yes
  35. 35.Write 5/15 in its simplest form. =
  36. 36.Write 8/56 in its simplest form. =
  37. 37.Write 42/48 in its simplest form. =
  38. 38.Is 4/10 in its simplest form? (a) Yes (b) No
  39. 39.Is 21/27 in its simplest form? (a) Yes (b) No
  40. 40.Is 4/24 in its simplest form? (a) No (b) Yes

Answer key

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

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