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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 559 · 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 4/36 in its simplest form? (a) No (b) Yes
  2. 2.Write 56/72 in its simplest form. =
  3. 3.Is 1/4 in its simplest form? (a) No (b) Yes
  4. 4.Write 20/45 in its simplest form. =
  5. 5.What is the HCF of 3 and 21?
  6. 6.Write 32/40 in its simplest form. =
  7. 7.Write 35/56 in its simplest form. =
  8. 8.Is 4/20 in its simplest form? (a) Yes (b) No
  9. 9.What is the HCF of 8 and 40?
  10. 10.Write 12/21 in its simplest form. =
  11. 11.Is 12/40 in its simplest form? (a) No (b) Yes
  12. 12.What is the HCF of 14 and 18?
  13. 13.Write 15/20 in its simplest form. =
  14. 14.What is the HCF of 7 and 63?
  15. 15.Write 27/45 in its simplest form. =
  16. 16.Is 1/5 in its simplest form? (a) Yes (b) No
  17. 17.Is 18/48 in its simplest form? (a) No (b) Yes
  18. 18.Write 6/14 in its simplest form. =
  19. 19.Write 8/24 in its simplest form. =
  20. 20.Write 21/35 in its simplest form. =
  21. 21.Write 18/30 in its simplest form. =
  22. 22.Is 21/27 in its simplest form? (a) No (b) Yes
  23. 23.Is 3/27 in its simplest form? (a) No (b) Yes
  24. 24.What is the HCF of 7 and 35?
  25. 25.Is 1/10 in its simplest form? (a) No (b) Yes
  26. 26.What is the HCF of 20 and 35?
  27. 27.Write 28/40 in its simplest form. =
  28. 28.Write 6/15 in its simplest form. =
  29. 29.What is the HCF of 7 and 42?
  30. 30.What is the HCF of 8 and 80?
  31. 31.Write 3/30 in its simplest form. =
  32. 32.What is the HCF of 18 and 63?
  33. 33.Write 2/6 in its simplest form. =
  34. 34.What is the HCF of 35 and 42?
  35. 35.Is 4/9 in its simplest form? (a) Yes (b) No
  36. 36.What is the HCF of 20 and 24?
  37. 37.What is the HCF of 56 and 72?
  38. 38.Write 16/56 in its simplest form. =
  39. 39.Write 12/18 in its simplest form. =
  40. 40.What is the HCF of 6 and 8?

Answer key

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

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