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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 626 · 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 4/10 in its simplest form. =
  2. 2.Write 15/27 in its simplest form. =
  3. 3.Write 3/9 in its simplest form. =
  4. 4.What is the HCF of 32 and 40?
  5. 5.Is 7/10 in its simplest form? (a) Yes (b) No
  6. 6.Write 12/16 in its simplest form. =
  7. 7.Is 7/9 in its simplest form? (a) Yes (b) No
  8. 8.What is the HCF of 42 and 54?
  9. 9.Write 7/70 in its simplest form. =
  10. 10.What is the HCF of 36 and 45?
  11. 11.Write 8/12 in its simplest form. =
  12. 12.Write 24/54 in its simplest form. =
  13. 13.What is the HCF of 10 and 45?
  14. 14.Write 9/72 in its simplest form. =
  15. 15.Is 36/42 in its simplest form? (a) Yes (b) No
  16. 16.What is the HCF of 12 and 21?
  17. 17.What is the HCF of 40 and 72?
  18. 18.Write 12/54 in its simplest form. =
  19. 19.What is the HCF of 16 and 36?
  20. 20.What is the HCF of 8 and 36?
  21. 21.Is 3/12 in its simplest form? (a) Yes (b) No
  22. 22.Write 27/90 in its simplest form. =
  23. 23.Write 6/60 in its simplest form. =
  24. 24.What is the HCF of 12 and 14?
  25. 25.Is 21/24 in its simplest form? (a) Yes (b) No
  26. 26.What is the HCF of 18 and 24?
  27. 27.Write 45/81 in its simplest form. =
  28. 28.Write 32/36 in its simplest form. =
  29. 29.Write 4/36 in its simplest form. =
  30. 30.Write 18/20 in its simplest form. =
  31. 31.Is 42/54 in its simplest form? (a) Yes (b) No
  32. 32.Is 12/28 in its simplest form? (a) Yes (b) No
  33. 33.Write 36/45 in its simplest form. =
  34. 34.What is the HCF of 35 and 56?
  35. 35.What is the HCF of 12 and 15?
  36. 36.Write 8/32 in its simplest form. =
  37. 37.What is the HCF of 12 and 20?
  38. 38.What is the HCF of 16 and 18?
  39. 39.Is 4/6 in its simplest form? (a) Yes (b) No
  40. 40.What is the HCF of 4 and 36?

Answer key

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

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