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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 468 · 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 10?
  2. 2.Is 4/20 in its simplest form? (a) No (b) Yes
  3. 3.Is 1/3 in its simplest form? (a) No (b) Yes
  4. 4.Is 8/9 in its simplest form? (a) No (b) Yes
  5. 5.Is 6/42 in its simplest form? (a) Yes (b) No
  6. 6.What is the HCF of 64 and 72?
  7. 7.What is the HCF of 2 and 16?
  8. 8.What is the HCF of 5 and 50?
  9. 9.Write 20/32 in its simplest form. =
  10. 10.What is the HCF of 18 and 81?
  11. 11.Is 3/4 in its simplest form? (a) Yes (b) No
  12. 12.What is the HCF of 12 and 18?
  13. 13.What is the HCF of 7 and 42?
  14. 14.Is 6/18 in its simplest form? (a) Yes (b) No
  15. 15.Is 1/6 in its simplest form? (a) Yes (b) No
  16. 16.Write 7/21 in its simplest form. =
  17. 17.Write 30/48 in its simplest form. =
  18. 18.Is 2/4 in its simplest form? (a) Yes (b) No
  19. 19.Write 6/15 in its simplest form. =
  20. 20.What is the HCF of 2 and 10?
  21. 21.Write 3/30 in its simplest form. =
  22. 22.What is the HCF of 4 and 16?
  23. 23.Is 15/20 in its simplest form? (a) Yes (b) No
  24. 24.Write 5/40 in its simplest form. =
  25. 25.Is 2/5 in its simplest form? (a) No (b) Yes
  26. 26.Write 3/9 in its simplest form. =
  27. 27.Is 8/28 in its simplest form? (a) No (b) Yes
  28. 28.Is 3/9 in its simplest form? (a) Yes (b) No
  29. 29.Write 27/63 in its simplest form. =
  30. 30.What is the HCF of 8 and 16?
  31. 31.What is the HCF of 5 and 10?
  32. 32.Write 7/28 in its simplest form. =
  33. 33.Write 12/21 in its simplest form. =
  34. 34.Write 24/27 in its simplest form. =
  35. 35.What is the HCF of 4 and 18?
  36. 36.Write 12/32 in its simplest form. =
  37. 37.Is 1/2 in its simplest form? (a) No (b) Yes
  38. 38.Write 12/27 in its simplest form. =
  39. 39.Is 3/8 in its simplest form? (a) Yes (b) No
  40. 40.Write 81/90 in its simplest form. =

Answer key

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

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