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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 636 · 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 49/63 in its simplest form. =
  2. 2.Write 4/14 in its simplest form. =
  3. 3.What is the HCF of 4 and 10?
  4. 4.Is 6/7 in its simplest form? (a) No (b) Yes
  5. 5.Is 25/30 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 30 and 54?
  7. 7.Write 12/18 in its simplest form. =
  8. 8.What is the HCF of 54 and 63?
  9. 9.Is 7/9 in its simplest form? (a) Yes (b) No
  10. 10.Write 35/56 in its simplest form. =
  11. 11.Write 5/25 in its simplest form. =
  12. 12.Write 40/72 in its simplest form. =
  13. 13.Write 16/56 in its simplest form. =
  14. 14.Is 4/7 in its simplest form? (a) No (b) Yes
  15. 15.Is 2/9 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 9 and 54?
  17. 17.What is the HCF of 12 and 27?
  18. 18.Write 25/30 in its simplest form. =
  19. 19.Write 4/18 in its simplest form. =
  20. 20.Is 5/6 in its simplest form? (a) Yes (b) No
  21. 21.What is the HCF of 20 and 45?
  22. 22.What is the HCF of 45 and 81?
  23. 23.What is the HCF of 28 and 32?
  24. 24.What is the HCF of 8 and 12?
  25. 25.What is the HCF of 16 and 40?
  26. 26.Write 10/25 in its simplest form. =
  27. 27.Is 5/9 in its simplest form? (a) No (b) Yes
  28. 28.What is the HCF of 7 and 35?
  29. 29.Is 30/42 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 3 and 24?
  31. 31.Is 2/3 in its simplest form? (a) No (b) Yes
  32. 32.What is the HCF of 12 and 16?
  33. 33.Is 2/5 in its simplest form? (a) No (b) Yes
  34. 34.What is the HCF of 2 and 10?
  35. 35.Is 1/6 in its simplest form? (a) No (b) Yes
  36. 36.What is the HCF of 6 and 8?
  37. 37.What is the HCF of 18 and 24?
  38. 38.Write 9/18 in its simplest form. =
  39. 39.What is the HCF of 35 and 45?
  40. 40.What is the HCF of 2 and 6?

Answer key

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

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