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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 430 · 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 16 and 20?
  2. 2.Write 40/45 in its simplest form. =
  3. 3.What is the HCF of 9 and 36?
  4. 4.Is 6/15 in its simplest form? (a) Yes (b) No
  5. 5.What is the HCF of 4 and 12?
  6. 6.Write 27/63 in its simplest form. =
  7. 7.Is 4/5 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 15 and 35?
  9. 9.What is the HCF of 64 and 72?
  10. 10.Write 20/36 in its simplest form. =
  11. 11.What is the HCF of 12 and 27?
  12. 12.What is the HCF of 14 and 63?
  13. 13.What is the HCF of 5 and 25?
  14. 14.Write 14/20 in its simplest form. =
  15. 15.Write 21/49 in its simplest form. =
  16. 16.What is the HCF of 4 and 24?
  17. 17.What is the HCF of 12 and 15?
  18. 18.Write 8/28 in its simplest form. =
  19. 19.What is the HCF of 40 and 45?
  20. 20.Write 6/16 in its simplest form. =
  21. 21.What is the HCF of 6 and 60?
  22. 22.Is 2/3 in its simplest form? (a) Yes (b) No
  23. 23.What is the HCF of 12 and 32?
  24. 24.Is 5/6 in its simplest form? (a) No (b) Yes
  25. 25.Is 6/20 in its simplest form? (a) Yes (b) No
  26. 26.Is 3/8 in its simplest form? (a) No (b) Yes
  27. 27.Write 15/24 in its simplest form. =
  28. 28.Write 8/20 in its simplest form. =
  29. 29.What is the HCF of 36 and 63?
  30. 30.Write 54/60 in its simplest form. =
  31. 31.Write 8/36 in its simplest form. =
  32. 32.What is the HCF of 9 and 27?
  33. 33.What is the HCF of 9 and 30?
  34. 34.Write 12/14 in its simplest form. =
  35. 35.Write 6/54 in its simplest form. =
  36. 36.Write 8/12 in its simplest form. =
  37. 37.Write 24/27 in its simplest form. =
  38. 38.What is the HCF of 9 and 63?
  39. 39.Is 40/45 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 6 and 14?

Answer key

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

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