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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 273 · 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.Is 2/3 in its simplest form? (a) No (b) Yes
  2. 2.Is 1/6 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 18 and 48?
  4. 4.Write 5/35 in its simplest form. =
  5. 5.Is 15/20 in its simplest form? (a) Yes (b) No
  6. 6.Write 81/90 in its simplest form. =
  7. 7.What is the HCF of 25 and 35?
  8. 8.What is the HCF of 9 and 54?
  9. 9.Write 24/80 in its simplest form. =
  10. 10.Is 30/42 in its simplest form? (a) Yes (b) No
  11. 11.Is 12/15 in its simplest form? (a) Yes (b) No
  12. 12.Write 36/42 in its simplest form. =
  13. 13.What is the HCF of 8 and 40?
  14. 14.What is the HCF of 63 and 81?
  15. 15.Write 6/48 in its simplest form. =
  16. 16.Is 3/4 in its simplest form? (a) Yes (b) No
  17. 17.What is the HCF of 32 and 56?
  18. 18.Is 2/10 in its simplest form? (a) No (b) Yes
  19. 19.Write 20/36 in its simplest form. =
  20. 20.Write 14/16 in its simplest form. =
  21. 21.Is 3/8 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 30 and 35?
  23. 23.Is 18/20 in its simplest form? (a) Yes (b) No
  24. 24.What is the HCF of 4 and 18?
  25. 25.Write 4/16 in its simplest form. =
  26. 26.Is 24/54 in its simplest form? (a) Yes (b) No
  27. 27.Write 9/24 in its simplest form. =
  28. 28.Is 7/10 in its simplest form? (a) Yes (b) No
  29. 29.What is the HCF of 8 and 12?
  30. 30.Is 4/5 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 8 and 28?
  32. 32.What is the HCF of 27 and 63?
  33. 33.What is the HCF of 16 and 40?
  34. 34.Is 7/9 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 4 and 10?
  36. 36.What is the HCF of 9 and 12?
  37. 37.What is the HCF of 18 and 42?
  38. 38.Write 5/30 in its simplest form. =
  39. 39.What is the HCF of 7 and 56?
  40. 40.Write 21/70 in its simplest form. =

Answer key

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

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