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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 471 · 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 9 and 30?
  3. 3.Is 4/5 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 36 and 63?
  5. 5.Write 9/45 in its simplest form. =
  6. 6.What is the HCF of 49 and 63?
  7. 7.Write 42/49 in its simplest form. =
  8. 8.Write 24/30 in its simplest form. =
  9. 9.Is 2/3 in its simplest form? (a) Yes (b) No
  10. 10.Write 8/10 in its simplest form. =
  11. 11.What is the HCF of 12 and 30?
  12. 12.What is the HCF of 45 and 50?
  13. 13.Is 8/9 in its simplest form? (a) No (b) Yes
  14. 14.Write 18/45 in its simplest form. =
  15. 15.Is 1/4 in its simplest form? (a) No (b) Yes
  16. 16.Write 6/27 in its simplest form. =
  17. 17.What is the HCF of 18 and 30?
  18. 18.Is 1/7 in its simplest form? (a) Yes (b) No
  19. 19.Is 6/42 in its simplest form? (a) Yes (b) No
  20. 20.What is the HCF of 48 and 54?
  21. 21.What is the HCF of 5 and 40?
  22. 22.Write 16/72 in its simplest form. =
  23. 23.Write 3/24 in its simplest form. =
  24. 24.What is the HCF of 49 and 56?
  25. 25.What is the HCF of 6 and 30?
  26. 26.Is 6/60 in its simplest form? (a) No (b) Yes
  27. 27.Is 21/30 in its simplest form? (a) Yes (b) No
  28. 28.Is 3/12 in its simplest form? (a) No (b) Yes
  29. 29.Write 16/18 in its simplest form. =
  30. 30.Write 6/14 in its simplest form. =
  31. 31.What is the HCF of 7 and 56?
  32. 32.What is the HCF of 15 and 24?
  33. 33.Is 15/27 in its simplest form? (a) No (b) Yes
  34. 34.What is the HCF of 6 and 24?
  35. 35.Write 56/80 in its simplest form. =
  36. 36.What is the HCF of 42 and 60?
  37. 37.Is 20/32 in its simplest form? (a) Yes (b) No
  38. 38.Is 21/27 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 9 and 15?
  40. 40.Is 3/5 in its simplest form? (a) Yes (b) No

Answer key

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

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