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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 363 · 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 9/12 in its simplest form. =
  2. 2.What is the HCF of 18 and 63?
  3. 3.Write 40/64 in its simplest form. =
  4. 4.What is the HCF of 15 and 18?
  5. 5.Is 2/3 in its simplest form? (a) No (b) Yes
  6. 6.Write 20/45 in its simplest form. =
  7. 7.Is 14/16 in its simplest form? (a) No (b) Yes
  8. 8.Is 32/36 in its simplest form? (a) Yes (b) No
  9. 9.What is the HCF of 10 and 16?
  10. 10.What is the HCF of 18 and 24?
  11. 11.What is the HCF of 10 and 14?
  12. 12.Write 18/60 in its simplest form. =
  13. 13.Is 6/7 in its simplest form? (a) No (b) Yes
  14. 14.Write 4/18 in its simplest form. =
  15. 15.Write 8/24 in its simplest form. =
  16. 16.Write 18/20 in its simplest form. =
  17. 17.Write 14/21 in its simplest form. =
  18. 18.Is 25/45 in its simplest form? (a) Yes (b) No
  19. 19.Write 56/64 in its simplest form. =
  20. 20.Is 1/8 in its simplest form? (a) Yes (b) No
  21. 21.Is 6/42 in its simplest form? (a) Yes (b) No
  22. 22.Is 1/5 in its simplest form? (a) No (b) Yes
  23. 23.Write 24/27 in its simplest form. =
  24. 24.Write 18/24 in its simplest form. =
  25. 25.What is the HCF of 4 and 16?
  26. 26.Is 12/15 in its simplest form? (a) No (b) Yes
  27. 27.Is 2/12 in its simplest form? (a) No (b) Yes
  28. 28.Write 7/42 in its simplest form. =
  29. 29.Write 21/28 in its simplest form. =
  30. 30.Write 4/20 in its simplest form. =
  31. 31.Write 12/15 in its simplest form. =
  32. 32.Is 20/28 in its simplest form? (a) Yes (b) No
  33. 33.Write 30/48 in its simplest form. =
  34. 34.Write 6/21 in its simplest form. =
  35. 35.Write 12/20 in its simplest form. =
  36. 36.Write 6/12 in its simplest form. =
  37. 37.What is the HCF of 40 and 48?
  38. 38.What is the HCF of 14 and 18?
  39. 39.What is the HCF of 8 and 10?
  40. 40.What is the HCF of 45 and 72?

Answer key

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

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