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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 780 · 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 16?
  2. 2.What is the HCF of 6 and 18?
  3. 3.Write 4/14 in its simplest form. =
  4. 4.Write 35/63 in its simplest form. =
  5. 5.What is the HCF of 32 and 40?
  6. 6.Is 6/18 in its simplest form? (a) Yes (b) No
  7. 7.Write 9/90 in its simplest form. =
  8. 8.Is 6/10 in its simplest form? (a) No (b) Yes
  9. 9.Write 5/15 in its simplest form. =
  10. 10.What is the HCF of 2 and 20?
  11. 11.Write 18/48 in its simplest form. =
  12. 12.Is 5/8 in its simplest form? (a) Yes (b) No
  13. 13.Write 15/20 in its simplest form. =
  14. 14.What is the HCF of 2 and 14?
  15. 15.Write 14/21 in its simplest form. =
  16. 16.Is 1/4 in its simplest form? (a) Yes (b) No
  17. 17.Write 3/18 in its simplest form. =
  18. 18.Write 27/30 in its simplest form. =
  19. 19.Is 10/16 in its simplest form? (a) No (b) Yes
  20. 20.Write 49/70 in its simplest form. =
  21. 21.Write 12/54 in its simplest form. =
  22. 22.Is 7/10 in its simplest form? (a) Yes (b) No
  23. 23.What is the HCF of 18 and 45?
  24. 24.Is 5/35 in its simplest form? (a) No (b) Yes
  25. 25.Is 3/4 in its simplest form? (a) No (b) Yes
  26. 26.What is the HCF of 9 and 21?
  27. 27.Write 20/35 in its simplest form. =
  28. 28.Write 12/27 in its simplest form. =
  29. 29.Write 35/56 in its simplest form. =
  30. 30.Is 2/7 in its simplest form? (a) Yes (b) No
  31. 31.Write 5/30 in its simplest form. =
  32. 32.Write 24/42 in its simplest form. =
  33. 33.What is the HCF of 9 and 12?
  34. 34.What is the HCF of 21 and 28?
  35. 35.Write 2/16 in its simplest form. =
  36. 36.Write 8/20 in its simplest form. =
  37. 37.What is the HCF of 40 and 72?
  38. 38.Is 1/8 in its simplest form? (a) Yes (b) No
  39. 39.Write 6/16 in its simplest form. =
  40. 40.Is 24/27 in its simplest form? (a) No (b) Yes

Answer key

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

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