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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 452 · 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 8 and 40?
  2. 2.Write 12/30 in its simplest form. =
  3. 3.Write 9/24 in its simplest form. =
  4. 4.Is 3/21 in its simplest form? (a) No (b) Yes
  5. 5.Is 6/14 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 6 and 60?
  7. 7.Write 12/28 in its simplest form. =
  8. 8.Write 35/50 in its simplest form. =
  9. 9.What is the HCF of 36 and 42?
  10. 10.What is the HCF of 45 and 81?
  11. 11.What is the HCF of 21 and 28?
  12. 12.What is the HCF of 2 and 14?
  13. 13.Is 1/3 in its simplest form? (a) Yes (b) No
  14. 14.Write 30/36 in its simplest form. =
  15. 15.Is 18/30 in its simplest form? (a) Yes (b) No
  16. 16.Write 4/6 in its simplest form. =
  17. 17.Is 4/20 in its simplest form? (a) No (b) Yes
  18. 18.Write 2/18 in its simplest form. =
  19. 19.Is 6/36 in its simplest form? (a) No (b) Yes
  20. 20.What is the HCF of 4 and 40?
  21. 21.What is the HCF of 42 and 48?
  22. 22.Write 12/27 in its simplest form. =
  23. 23.Is 15/27 in its simplest form? (a) No (b) Yes
  24. 24.What is the HCF of 3 and 21?
  25. 25.Is 18/24 in its simplest form? (a) Yes (b) No
  26. 26.What is the HCF of 35 and 49?
  27. 27.What is the HCF of 3 and 15?
  28. 28.Is 12/27 in its simplest form? (a) Yes (b) No
  29. 29.Write 36/40 in its simplest form. =
  30. 30.What is the HCF of 18 and 42?
  31. 31.Write 45/63 in its simplest form. =
  32. 32.Write 9/15 in its simplest form. =
  33. 33.Is 21/30 in its simplest form? (a) Yes (b) No
  34. 34.Write 3/27 in its simplest form. =
  35. 35.Is 1/4 in its simplest form? (a) No (b) Yes
  36. 36.What is the HCF of 9 and 21?
  37. 37.Write 25/40 in its simplest form. =
  38. 38.Write 28/63 in its simplest form. =
  39. 39.What is the HCF of 6 and 16?
  40. 40.Is 2/3 in its simplest form? (a) No (b) Yes

Answer key

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

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