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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 758 · 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 9 and 12?
  2. 2.What is the HCF of 40 and 56?
  3. 3.What is the HCF of 8 and 14?
  4. 4.Is 2/8 in its simplest form? (a) Yes (b) No
  5. 5.Is 5/6 in its simplest form? (a) Yes (b) No
  6. 6.Write 28/36 in its simplest form. =
  7. 7.What is the HCF of 5 and 35?
  8. 8.What is the HCF of 24 and 54?
  9. 9.What is the HCF of 18 and 30?
  10. 10.What is the HCF of 9 and 18?
  11. 11.Is 3/8 in its simplest form? (a) No (b) Yes
  12. 12.Is 9/24 in its simplest form? (a) No (b) Yes
  13. 13.Write 6/14 in its simplest form. =
  14. 14.Write 18/63 in its simplest form. =
  15. 15.What is the HCF of 40 and 45?
  16. 16.Write 40/64 in its simplest form. =
  17. 17.What is the HCF of 21 and 27?
  18. 18.Is 3/12 in its simplest form? (a) Yes (b) No
  19. 19.Is 6/12 in its simplest form? (a) Yes (b) No
  20. 20.What is the HCF of 14 and 18?
  21. 21.What is the HCF of 35 and 50?
  22. 22.Is 8/9 in its simplest form? (a) No (b) Yes
  23. 23.Is 3/30 in its simplest form? (a) No (b) Yes
  24. 24.Write 45/72 in its simplest form. =
  25. 25.What is the HCF of 5 and 10?
  26. 26.Write 20/28 in its simplest form. =
  27. 27.What is the HCF of 2 and 4?
  28. 28.What is the HCF of 6 and 16?
  29. 29.Write 8/72 in its simplest form. =
  30. 30.Is 1/2 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 25 and 30?
  32. 32.What is the HCF of 4 and 36?
  33. 33.Write 16/72 in its simplest form. =
  34. 34.What is the HCF of 14 and 16?
  35. 35.Is 2/16 in its simplest form? (a) No (b) Yes
  36. 36.Is 3/5 in its simplest form? (a) No (b) Yes
  37. 37.Write 9/45 in its simplest form. =
  38. 38.Is 15/50 in its simplest form? (a) Yes (b) No
  39. 39.Is 5/8 in its simplest form? (a) Yes (b) No
  40. 40.Is 1/8 in its simplest form? (a) No (b) Yes

Answer key

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

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