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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 85 · 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 36/40 in its simplest form. =
  2. 2.What is the HCF of 14 and 49?
  3. 3.Is 5/8 in its simplest form? (a) Yes (b) No
  4. 4.What is the HCF of 8 and 32?
  5. 5.What is the HCF of 7 and 70?
  6. 6.Write 4/12 in its simplest form. =
  7. 7.What is the HCF of 4 and 8?
  8. 8.Write 35/56 in its simplest form. =
  9. 9.What is the HCF of 35 and 50?
  10. 10.Is 40/45 in its simplest form? (a) Yes (b) No
  11. 11.Write 8/56 in its simplest form. =
  12. 12.What is the HCF of 8 and 14?
  13. 13.Is 3/18 in its simplest form? (a) Yes (b) No
  14. 14.Is 1/3 in its simplest form? (a) No (b) Yes
  15. 15.Write 35/49 in its simplest form. =
  16. 16.What is the HCF of 9 and 54?
  17. 17.Write 35/50 in its simplest form. =
  18. 18.What is the HCF of 36 and 81?
  19. 19.What is the HCF of 12 and 20?
  20. 20.What is the HCF of 48 and 54?
  21. 21.Is 5/7 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 63 and 81?
  23. 23.What is the HCF of 45 and 72?
  24. 24.What is the HCF of 35 and 45?
  25. 25.Write 4/10 in its simplest form. =
  26. 26.Is 8/18 in its simplest form? (a) Yes (b) No
  27. 27.What is the HCF of 16 and 20?
  28. 28.What is the HCF of 45 and 54?
  29. 29.Write 10/45 in its simplest form. =
  30. 30.What is the HCF of 2 and 14?
  31. 31.Write 16/56 in its simplest form. =
  32. 32.Is 4/5 in its simplest form? (a) Yes (b) No
  33. 33.Is 3/5 in its simplest form? (a) Yes (b) No
  34. 34.What is the HCF of 10 and 12?
  35. 35.Is 24/30 in its simplest form? (a) Yes (b) No
  36. 36.What is the HCF of 25 and 45?
  37. 37.What is the HCF of 18 and 20?
  38. 38.Write 3/15 in its simplest form. =
  39. 39.What is the HCF of 18 and 21?
  40. 40.What is the HCF of 45 and 81?

Answer key

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

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