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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 407 · 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 4/20 in its simplest form. =
  2. 2.Write 18/30 in its simplest form. =
  3. 3.Is 4/14 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 3 and 30?
  5. 5.Is 6/16 in its simplest form? (a) Yes (b) No
  6. 6.Is 3/8 in its simplest form? (a) No (b) Yes
  7. 7.Write 36/42 in its simplest form. =
  8. 8.What is the HCF of 20 and 32?
  9. 9.Write 36/40 in its simplest form. =
  10. 10.Is 21/30 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 16 and 56?
  12. 12.Write 24/56 in its simplest form. =
  13. 13.What is the HCF of 2 and 10?
  14. 14.Write 30/36 in its simplest form. =
  15. 15.Is 1/3 in its simplest form? (a) Yes (b) No
  16. 16.What is the HCF of 32 and 36?
  17. 17.What is the HCF of 56 and 64?
  18. 18.Is 12/30 in its simplest form? (a) No (b) Yes
  19. 19.Write 6/60 in its simplest form. =
  20. 20.Write 8/40 in its simplest form. =
  21. 21.Write 4/8 in its simplest form. =
  22. 22.Write 12/18 in its simplest form. =
  23. 23.Is 30/36 in its simplest form? (a) Yes (b) No
  24. 24.What is the HCF of 28 and 40?
  25. 25.What is the HCF of 15 and 27?
  26. 26.Is 4/20 in its simplest form? (a) Yes (b) No
  27. 27.Write 2/10 in its simplest form. =
  28. 28.What is the HCF of 3 and 15?
  29. 29.Is 7/9 in its simplest form? (a) Yes (b) No
  30. 30.What is the HCF of 14 and 18?
  31. 31.Write 6/18 in its simplest form. =
  32. 32.Write 8/10 in its simplest form. =
  33. 33.Write 27/36 in its simplest form. =
  34. 34.Is 15/24 in its simplest form? (a) No (b) Yes
  35. 35.Write 12/54 in its simplest form. =
  36. 36.What is the HCF of 12 and 16?
  37. 37.Is 6/60 in its simplest form? (a) Yes (b) No
  38. 38.Write 8/28 in its simplest form. =
  39. 39.What is the HCF of 18 and 24?
  40. 40.Write 6/15 in its simplest form. =

Answer key

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

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