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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 602 · 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.Is 18/30 in its simplest form? (a) No (b) Yes
  2. 2.Write 3/6 in its simplest form. =
  3. 3.Is 9/30 in its simplest form? (a) No (b) Yes
  4. 4.Write 81/90 in its simplest form. =
  5. 5.Write 15/21 in its simplest form. =
  6. 6.Write 10/14 in its simplest form. =
  7. 7.Write 45/81 in its simplest form. =
  8. 8.Write 9/90 in its simplest form. =
  9. 9.Write 18/63 in its simplest form. =
  10. 10.What is the HCF of 6 and 24?
  11. 11.Write 4/28 in its simplest form. =
  12. 12.Is 1/4 in its simplest form? (a) Yes (b) No
  13. 13.What is the HCF of 28 and 63?
  14. 14.Write 6/8 in its simplest form. =
  15. 15.What is the HCF of 42 and 48?
  16. 16.Write 8/18 in its simplest form. =
  17. 17.What is the HCF of 4 and 28?
  18. 18.Write 6/36 in its simplest form. =
  19. 19.Is 3/7 in its simplest form? (a) Yes (b) No
  20. 20.Is 3/5 in its simplest form? (a) No (b) Yes
  21. 21.Is 3/10 in its simplest form? (a) Yes (b) No
  22. 22.What is the HCF of 18 and 45?
  23. 23.What is the HCF of 8 and 24?
  24. 24.Write 16/72 in its simplest form. =
  25. 25.What is the HCF of 6 and 36?
  26. 26.What is the HCF of 32 and 36?
  27. 27.What is the HCF of 16 and 18?
  28. 28.Is 25/45 in its simplest form? (a) Yes (b) No
  29. 29.Write 6/60 in its simplest form. =
  30. 30.What is the HCF of 14 and 21?
  31. 31.Write 4/20 in its simplest form. =
  32. 32.What is the HCF of 9 and 24?
  33. 33.What is the HCF of 3 and 12?
  34. 34.Write 10/45 in its simplest form. =
  35. 35.Write 18/20 in its simplest form. =
  36. 36.What is the HCF of 6 and 60?
  37. 37.Is 9/24 in its simplest form? (a) No (b) Yes
  38. 38.Is 40/45 in its simplest form? (a) No (b) Yes
  39. 39.Write 28/35 in its simplest form. =
  40. 40.Is 3/4 in its simplest form? (a) No (b) Yes

Answer key

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

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