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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 927 · 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 12 and 18?
  2. 2.Is 3/18 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 20 and 35?
  4. 4.What is the HCF of 15 and 18?
  5. 5.What is the HCF of 16 and 24?
  6. 6.Write 3/12 in its simplest form. =
  7. 7.What is the HCF of 10 and 14?
  8. 8.What is the HCF of 18 and 45?
  9. 9.What is the HCF of 9 and 63?
  10. 10.What is the HCF of 7 and 28?
  11. 11.Write 54/63 in its simplest form. =
  12. 12.Write 4/18 in its simplest form. =
  13. 13.What is the HCF of 2 and 18?
  14. 14.What is the HCF of 4 and 10?
  15. 15.Is 7/9 in its simplest form? (a) No (b) Yes
  16. 16.Write 2/14 in its simplest form. =
  17. 17.What is the HCF of 12 and 28?
  18. 18.Write 24/56 in its simplest form. =
  19. 19.Write 8/20 in its simplest form. =
  20. 20.Write 3/9 in its simplest form. =
  21. 21.Write 24/32 in its simplest form. =
  22. 22.Is 25/45 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 9 and 15?
  24. 24.What is the HCF of 42 and 54?
  25. 25.What is the HCF of 6 and 8?
  26. 26.Write 63/72 in its simplest form. =
  27. 27.Write 16/24 in its simplest form. =
  28. 28.Write 18/20 in its simplest form. =
  29. 29.Is 8/9 in its simplest form? (a) Yes (b) No
  30. 30.What is the HCF of 8 and 24?
  31. 31.Is 5/6 in its simplest form? (a) No (b) Yes
  32. 32.Write 3/18 in its simplest form. =
  33. 33.Write 56/64 in its simplest form. =
  34. 34.Is 21/24 in its simplest form? (a) Yes (b) No
  35. 35.Is 16/36 in its simplest form? (a) No (b) Yes
  36. 36.Write 14/18 in its simplest form. =
  37. 37.Write 24/28 in its simplest form. =
  38. 38.What is the HCF of 20 and 25?
  39. 39.What is the HCF of 49 and 70?
  40. 40.What is the HCF of 15 and 25?

Answer key

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

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