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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 797 · 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 7 and 70?
  2. 2.What is the HCF of 12 and 32?
  3. 3.Write 12/40 in its simplest form. =
  4. 4.What is the HCF of 9 and 36?
  5. 5.Is 1/7 in its simplest form? (a) No (b) Yes
  6. 6.Is 2/5 in its simplest form? (a) Yes (b) No
  7. 7.What is the HCF of 9 and 12?
  8. 8.Write 12/14 in its simplest form. =
  9. 9.Is 20/36 in its simplest form? (a) No (b) Yes
  10. 10.Write 9/90 in its simplest form. =
  11. 11.Is 10/25 in its simplest form? (a) No (b) Yes
  12. 12.What is the HCF of 63 and 72?
  13. 13.Write 2/16 in its simplest form. =
  14. 14.What is the HCF of 10 and 45?
  15. 15.Write 2/12 in its simplest form. =
  16. 16.Is 4/12 in its simplest form? (a) No (b) Yes
  17. 17.Write 4/6 in its simplest form. =
  18. 18.Write 36/45 in its simplest form. =
  19. 19.What is the HCF of 16 and 72?
  20. 20.What is the HCF of 5 and 25?
  21. 21.What is the HCF of 10 and 12?
  22. 22.Is 3/9 in its simplest form? (a) Yes (b) No
  23. 23.Write 20/36 in its simplest form. =
  24. 24.What is the HCF of 40 and 48?
  25. 25.Is 6/27 in its simplest form? (a) No (b) Yes
  26. 26.What is the HCF of 15 and 25?
  27. 27.Write 21/70 in its simplest form. =
  28. 28.Is 2/9 in its simplest form? (a) Yes (b) No
  29. 29.Write 6/24 in its simplest form. =
  30. 30.What is the HCF of 6 and 30?
  31. 31.Write 72/80 in its simplest form. =
  32. 32.Write 45/72 in its simplest form. =
  33. 33.Is 3/5 in its simplest form? (a) No (b) Yes
  34. 34.Is 1/6 in its simplest form? (a) No (b) Yes
  35. 35.Is 2/3 in its simplest form? (a) Yes (b) No
  36. 36.Write 40/48 in its simplest form. =
  37. 37.Is 12/18 in its simplest form? (a) No (b) Yes
  38. 38.Is 7/8 in its simplest form? (a) Yes (b) No
  39. 39.Is 3/10 in its simplest form? (a) No (b) Yes
  40. 40.Write 2/20 in its simplest form. =

Answer key

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

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