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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 739 · 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 40 and 48?
  2. 2.What is the HCF of 15 and 25?
  3. 3.Write 2/18 in its simplest form. =
  4. 4.Is 7/9 in its simplest form? (a) Yes (b) No
  5. 5.What is the HCF of 18 and 24?
  6. 6.What is the HCF of 56 and 72?
  7. 7.What is the HCF of 20 and 45?
  8. 8.Write 5/45 in its simplest form. =
  9. 9.Is 5/9 in its simplest form? (a) Yes (b) No
  10. 10.Is 12/30 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 7 and 28?
  12. 12.Is 4/16 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 6 and 60?
  14. 14.Is 5/50 in its simplest form? (a) Yes (b) No
  15. 15.What is the HCF of 4 and 28?
  16. 16.What is the HCF of 6 and 30?
  17. 17.What is the HCF of 9 and 36?
  18. 18.Is 2/4 in its simplest form? (a) No (b) Yes
  19. 19.Write 7/35 in its simplest form. =
  20. 20.Is 18/20 in its simplest form? (a) Yes (b) No
  21. 21.What is the HCF of 10 and 12?
  22. 22.Write 12/42 in its simplest form. =
  23. 23.What is the HCF of 30 and 54?
  24. 24.Write 7/49 in its simplest form. =
  25. 25.Is 3/5 in its simplest form? (a) Yes (b) No
  26. 26.Is 24/54 in its simplest form? (a) Yes (b) No
  27. 27.Write 10/14 in its simplest form. =
  28. 28.Write 3/15 in its simplest form. =
  29. 29.Write 24/27 in its simplest form. =
  30. 30.What is the HCF of 36 and 42?
  31. 31.Write 28/36 in its simplest form. =
  32. 32.What is the HCF of 45 and 81?
  33. 33.Write 2/14 in its simplest form. =
  34. 34.Write 6/60 in its simplest form. =
  35. 35.Write 6/20 in its simplest form. =
  36. 36.Write 8/64 in its simplest form. =
  37. 37.Write 3/30 in its simplest form. =
  38. 38.Write 16/56 in its simplest form. =
  39. 39.Is 2/3 in its simplest form? (a) Yes (b) No
  40. 40.Write 6/48 in its simplest form. =

Answer key

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

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