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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 548 · 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 8/14 in its simplest form. =
  2. 2.Is 4/9 in its simplest form? (a) No (b) Yes
  3. 3.Write 24/40 in its simplest form. =
  4. 4.Write 3/12 in its simplest form. =
  5. 5.Is 5/20 in its simplest form? (a) No (b) Yes
  6. 6.Write 27/30 in its simplest form. =
  7. 7.Write 45/72 in its simplest form. =
  8. 8.What is the HCF of 10 and 14?
  9. 9.Is 5/10 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 21 and 70?
  11. 11.Is 8/9 in its simplest form? (a) No (b) Yes
  12. 12.Write 25/40 in its simplest form. =
  13. 13.Is 5/35 in its simplest form? (a) Yes (b) No
  14. 14.Write 18/27 in its simplest form. =
  15. 15.Is 3/27 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 27 and 30?
  17. 17.Write 63/72 in its simplest form. =
  18. 18.What is the HCF of 32 and 36?
  19. 19.Is 10/12 in its simplest form? (a) No (b) Yes
  20. 20.Is 3/7 in its simplest form? (a) No (b) Yes
  21. 21.What is the HCF of 12 and 14?
  22. 22.What is the HCF of 6 and 48?
  23. 23.Write 24/32 in its simplest form. =
  24. 24.Is 1/5 in its simplest form? (a) Yes (b) No
  25. 25.Write 21/24 in its simplest form. =
  26. 26.Write 36/42 in its simplest form. =
  27. 27.Write 45/54 in its simplest form. =
  28. 28.What is the HCF of 6 and 21?
  29. 29.Is 6/7 in its simplest form? (a) Yes (b) No
  30. 30.Write 4/8 in its simplest form. =
  31. 31.What is the HCF of 4 and 12?
  32. 32.Is 18/30 in its simplest form? (a) No (b) Yes
  33. 33.Write 42/48 in its simplest form. =
  34. 34.What is the HCF of 10 and 15?
  35. 35.Write 3/24 in its simplest form. =
  36. 36.Write 9/45 in its simplest form. =
  37. 37.Write 12/40 in its simplest form. =
  38. 38.Is 5/9 in its simplest form? (a) No (b) Yes
  39. 39.Is 1/6 in its simplest form? (a) Yes (b) No
  40. 40.What is the HCF of 12 and 21?

Answer key

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

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