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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 962 · 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 9/21 in its simplest form? (a) No (b) Yes
  2. 2.Is 3/18 in its simplest form? (a) Yes (b) No
  3. 3.What is the HCF of 54 and 63?
  4. 4.Write 15/24 in its simplest form. =
  5. 5.What is the HCF of 5 and 20?
  6. 6.What is the HCF of 24 and 56?
  7. 7.What is the HCF of 24 and 80?
  8. 8.Write 27/36 in its simplest form. =
  9. 9.Is 4/5 in its simplest form? (a) No (b) Yes
  10. 10.Is 3/10 in its simplest form? (a) Yes (b) No
  11. 11.Write 14/21 in its simplest form. =
  12. 12.What is the HCF of 6 and 21?
  13. 13.Write 35/56 in its simplest form. =
  14. 14.What is the HCF of 9 and 36?
  15. 15.Write 10/12 in its simplest form. =
  16. 16.What is the HCF of 2 and 18?
  17. 17.What is the HCF of 4 and 20?
  18. 18.Write 35/63 in its simplest form. =
  19. 19.Is 16/20 in its simplest form? (a) Yes (b) No
  20. 20.Write 21/70 in its simplest form. =
  21. 21.Is 45/50 in its simplest form? (a) Yes (b) No
  22. 22.Write 12/14 in its simplest form. =
  23. 23.What is the HCF of 8 and 18?
  24. 24.Is 8/10 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 40 and 56?
  26. 26.Is 2/7 in its simplest form? (a) Yes (b) No
  27. 27.Write 7/56 in its simplest form. =
  28. 28.What is the HCF of 12 and 30?
  29. 29.Is 6/10 in its simplest form? (a) No (b) Yes
  30. 30.Write 35/40 in its simplest form. =
  31. 31.What is the HCF of 3 and 9?
  32. 32.What is the HCF of 63 and 70?
  33. 33.What is the HCF of 7 and 56?
  34. 34.Write 6/30 in its simplest form. =
  35. 35.Is 3/5 in its simplest form? (a) Yes (b) No
  36. 36.What is the HCF of 18 and 60?
  37. 37.Write 8/24 in its simplest form. =
  38. 38.Write 40/45 in its simplest form. =
  39. 39.Write 6/16 in its simplest form. =
  40. 40.Write 14/35 in its simplest form. =

Answer key

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

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