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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 162 · 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 54 and 60?
  2. 2.Write 49/56 in its simplest form. =
  3. 3.Write 9/30 in its simplest form. =
  4. 4.Write 15/21 in its simplest form. =
  5. 5.Write 6/8 in its simplest form. =
  6. 6.Write 6/30 in its simplest form. =
  7. 7.What is the HCF of 18 and 21?
  8. 8.What is the HCF of 40 and 72?
  9. 9.What is the HCF of 27 and 45?
  10. 10.Is 1/4 in its simplest form? (a) No (b) Yes
  11. 11.Write 9/45 in its simplest form. =
  12. 12.Is 3/12 in its simplest form? (a) Yes (b) No
  13. 13.Write 6/10 in its simplest form. =
  14. 14.Is 1/8 in its simplest form? (a) No (b) Yes
  15. 15.What is the HCF of 40 and 64?
  16. 16.Write 14/49 in its simplest form. =
  17. 17.Write 6/18 in its simplest form. =
  18. 18.Is 5/6 in its simplest form? (a) Yes (b) No
  19. 19.What is the HCF of 54 and 63?
  20. 20.Is 2/9 in its simplest form? (a) Yes (b) No
  21. 21.What is the HCF of 35 and 50?
  22. 22.Write 10/25 in its simplest form. =
  23. 23.What is the HCF of 3 and 15?
  24. 24.Is 24/28 in its simplest form? (a) No (b) Yes
  25. 25.Write 10/18 in its simplest form. =
  26. 26.Write 5/50 in its simplest form. =
  27. 27.Write 8/20 in its simplest form. =
  28. 28.Write 9/81 in its simplest form. =
  29. 29.What is the HCF of 4 and 32?
  30. 30.Write 28/40 in its simplest form. =
  31. 31.What is the HCF of 8 and 32?
  32. 32.Write 3/24 in its simplest form. =
  33. 33.Write 8/12 in its simplest form. =
  34. 34.Is 4/7 in its simplest form? (a) No (b) Yes
  35. 35.Is 2/18 in its simplest form? (a) No (b) Yes
  36. 36.Write 35/45 in its simplest form. =
  37. 37.Is 6/42 in its simplest form? (a) Yes (b) No
  38. 38.Write 3/12 in its simplest form. =
  39. 39.Write 15/25 in its simplest form. =
  40. 40.Is 20/25 in its simplest form? (a) No (b) Yes

Answer key

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

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