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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 721 · 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.Write 3/9 in its simplest form. =
  2. 2.What is the HCF of 12 and 27?
  3. 3.What is the HCF of 15 and 25?
  4. 4.What is the HCF of 6 and 42?
  5. 5.Is 18/48 in its simplest form? (a) Yes (b) No
  6. 6.Is 4/10 in its simplest form? (a) No (b) Yes
  7. 7.What is the HCF of 16 and 20?
  8. 8.Write 15/35 in its simplest form. =
  9. 9.What is the HCF of 28 and 36?
  10. 10.What is the HCF of 4 and 10?
  11. 11.Write 3/24 in its simplest form. =
  12. 12.Write 5/30 in its simplest form. =
  13. 13.Write 20/35 in its simplest form. =
  14. 14.Is 5/7 in its simplest form? (a) No (b) Yes
  15. 15.What is the HCF of 42 and 49?
  16. 16.What is the HCF of 6 and 18?
  17. 17.Write 4/36 in its simplest form. =
  18. 18.Write 9/63 in its simplest form. =
  19. 19.Is 45/50 in its simplest form? (a) No (b) Yes
  20. 20.Write 15/18 in its simplest form. =
  21. 21.Write 7/49 in its simplest form. =
  22. 22.Is 1/7 in its simplest form? (a) Yes (b) No
  23. 23.What is the HCF of 14 and 21?
  24. 24.Is 2/6 in its simplest form? (a) No (b) Yes
  25. 25.Is 2/8 in its simplest form? (a) No (b) Yes
  26. 26.Write 3/27 in its simplest form. =
  27. 27.What is the HCF of 49 and 63?
  28. 28.What is the HCF of 4 and 8?
  29. 29.What is the HCF of 24 and 40?
  30. 30.What is the HCF of 45 and 54?
  31. 31.What is the HCF of 9 and 12?
  32. 32.Write 27/36 in its simplest form. =
  33. 33.Write 36/42 in its simplest form. =
  34. 34.Write 12/30 in its simplest form. =
  35. 35.Is 7/10 in its simplest form? (a) Yes (b) No
  36. 36.Is 8/10 in its simplest form? (a) Yes (b) No
  37. 37.What is the HCF of 8 and 48?
  38. 38.Write 8/12 in its simplest form. =
  39. 39.Is 16/28 in its simplest form? (a) No (b) Yes
  40. 40.Is 24/27 in its simplest form? (a) No (b) Yes

Answer key

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

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