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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 544 · 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 2/8 in its simplest form? (a) Yes (b) No
  2. 2.Is 3/10 in its simplest form? (a) No (b) Yes
  3. 3.Write 6/60 in its simplest form. =
  4. 4.Write 2/6 in its simplest form. =
  5. 5.Is 10/12 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 25 and 35?
  7. 7.What is the HCF of 9 and 81?
  8. 8.Is 2/3 in its simplest form? (a) No (b) Yes
  9. 9.Is 5/25 in its simplest form? (a) No (b) Yes
  10. 10.Is 2/4 in its simplest form? (a) Yes (b) No
  11. 11.Write 48/54 in its simplest form. =
  12. 12.Is 16/20 in its simplest form? (a) No (b) Yes
  13. 13.Is 20/28 in its simplest form? (a) Yes (b) No
  14. 14.Write 24/56 in its simplest form. =
  15. 15.Is 1/8 in its simplest form? (a) No (b) Yes
  16. 16.Is 4/5 in its simplest form? (a) No (b) Yes
  17. 17.Write 7/28 in its simplest form. =
  18. 18.Is 18/21 in its simplest form? (a) No (b) Yes
  19. 19.What is the HCF of 7 and 42?
  20. 20.What is the HCF of 9 and 72?
  21. 21.Is 15/24 in its simplest form? (a) No (b) Yes
  22. 22.Write 9/36 in its simplest form. =
  23. 23.What is the HCF of 15 and 40?
  24. 24.Is 3/21 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 7 and 56?
  26. 26.What is the HCF of 45 and 72?
  27. 27.Write 8/80 in its simplest form. =
  28. 28.Write 12/20 in its simplest form. =
  29. 29.What is the HCF of 12 and 16?
  30. 30.Write 6/48 in its simplest form. =
  31. 31.What is the HCF of 8 and 56?
  32. 32.What is the HCF of 45 and 50?
  33. 33.What is the HCF of 24 and 32?
  34. 34.What is the HCF of 2 and 18?
  35. 35.What is the HCF of 18 and 20?
  36. 36.Write 20/45 in its simplest form. =
  37. 37.What is the HCF of 28 and 35?
  38. 38.Is 12/20 in its simplest form? (a) Yes (b) No
  39. 39.Is 7/10 in its simplest form? (a) No (b) Yes
  40. 40.Write 25/45 in its simplest form. =

Answer key

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

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