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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 972 · 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 12/15 in its simplest form. =
  2. 2.Is 30/48 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 16 and 36?
  4. 4.What is the HCF of 14 and 35?
  5. 5.What is the HCF of 20 and 28?
  6. 6.Write 27/72 in its simplest form. =
  7. 7.What is the HCF of 7 and 70?
  8. 8.Write 9/90 in its simplest form. =
  9. 9.What is the HCF of 12 and 16?
  10. 10.What is the HCF of 21 and 70?
  11. 11.Write 4/20 in its simplest form. =
  12. 12.Is 21/24 in its simplest form? (a) No (b) Yes
  13. 13.Write 18/81 in its simplest form. =
  14. 14.Is 30/42 in its simplest form? (a) Yes (b) No
  15. 15.Write 36/63 in its simplest form. =
  16. 16.Write 30/35 in its simplest form. =
  17. 17.What is the HCF of 10 and 16?
  18. 18.Write 54/63 in its simplest form. =
  19. 19.Write 9/12 in its simplest form. =
  20. 20.Is 1/10 in its simplest form? (a) Yes (b) No
  21. 21.Write 18/30 in its simplest form. =
  22. 22.Write 24/40 in its simplest form. =
  23. 23.Is 1/7 in its simplest form? (a) No (b) Yes
  24. 24.Write 2/20 in its simplest form. =
  25. 25.What is the HCF of 8 and 14?
  26. 26.Is 4/24 in its simplest form? (a) Yes (b) No
  27. 27.Write 9/63 in its simplest form. =
  28. 28.Write 12/16 in its simplest form. =
  29. 29.Write 35/49 in its simplest form. =
  30. 30.Is 5/9 in its simplest form? (a) Yes (b) No
  31. 31.Write 25/30 in its simplest form. =
  32. 32.What is the HCF of 4 and 12?
  33. 33.What is the HCF of 18 and 45?
  34. 34.Write 2/16 in its simplest form. =
  35. 35.Write 21/49 in its simplest form. =
  36. 36.What is the HCF of 6 and 14?
  37. 37.What is the HCF of 3 and 12?
  38. 38.Write 12/27 in its simplest form. =
  39. 39.Write 3/9 in its simplest form. =
  40. 40.Write 9/18 in its simplest form. =

Answer key

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

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