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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 307 · 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 28 and 36?
  2. 2.Is 1/3 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 36 and 81?
  4. 4.Is 20/25 in its simplest form? (a) No (b) Yes
  5. 5.Write 8/20 in its simplest form. =
  6. 6.Is 5/20 in its simplest form? (a) No (b) Yes
  7. 7.Write 2/10 in its simplest form. =
  8. 8.What is the HCF of 24 and 40?
  9. 9.Write 32/72 in its simplest form. =
  10. 10.Is 6/24 in its simplest form? (a) Yes (b) No
  11. 11.Is 30/48 in its simplest form? (a) Yes (b) No
  12. 12.Is 4/24 in its simplest form? (a) Yes (b) No
  13. 13.Write 6/15 in its simplest form. =
  14. 14.Write 3/9 in its simplest form. =
  15. 15.What is the HCF of 20 and 28?
  16. 16.Is 20/32 in its simplest form? (a) Yes (b) No
  17. 17.Write 36/45 in its simplest form. =
  18. 18.Write 20/24 in its simplest form. =
  19. 19.Is 2/3 in its simplest form? (a) Yes (b) No
  20. 20.What is the HCF of 64 and 72?
  21. 21.Write 16/24 in its simplest form. =
  22. 22.Write 4/40 in its simplest form. =
  23. 23.Write 24/64 in its simplest form. =
  24. 24.Write 6/8 in its simplest form. =
  25. 25.Write 21/27 in its simplest form. =
  26. 26.Write 3/12 in its simplest form. =
  27. 27.Is 10/16 in its simplest form? (a) No (b) Yes
  28. 28.What is the HCF of 15 and 21?
  29. 29.Is 4/18 in its simplest form? (a) Yes (b) No
  30. 30.Is 5/10 in its simplest form? (a) Yes (b) No
  31. 31.Write 40/64 in its simplest form. =
  32. 32.Write 6/21 in its simplest form. =
  33. 33.Write 63/81 in its simplest form. =
  34. 34.Write 2/6 in its simplest form. =
  35. 35.Is 3/15 in its simplest form? (a) Yes (b) No
  36. 36.Is 42/54 in its simplest form? (a) No (b) Yes
  37. 37.Write 6/60 in its simplest form. =
  38. 38.What is the HCF of 9 and 72?
  39. 39.Is 8/18 in its simplest form? (a) No (b) Yes
  40. 40.Is 18/20 in its simplest form? (a) Yes (b) No

Answer key

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

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