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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 187 · 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 3/21 in its simplest form. =
  2. 2.What is the HCF of 8 and 18?
  3. 3.Write 32/56 in its simplest form. =
  4. 4.What is the HCF of 6 and 10?
  5. 5.Is 25/40 in its simplest form? (a) No (b) Yes
  6. 6.Is 14/18 in its simplest form? (a) Yes (b) No
  7. 7.Write 6/36 in its simplest form. =
  8. 8.Is 5/6 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 32 and 36?
  10. 10.Is 27/30 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 21 and 30?
  12. 12.What is the HCF of 3 and 30?
  13. 13.What is the HCF of 56 and 64?
  14. 14.Write 28/32 in its simplest form. =
  15. 15.Is 5/9 in its simplest form? (a) Yes (b) No
  16. 16.Write 32/72 in its simplest form. =
  17. 17.What is the HCF of 20 and 45?
  18. 18.Write 24/32 in its simplest form. =
  19. 19.Is 45/50 in its simplest form? (a) No (b) Yes
  20. 20.Write 6/8 in its simplest form. =
  21. 21.Write 6/48 in its simplest form. =
  22. 22.What is the HCF of 35 and 42?
  23. 23.Write 6/9 in its simplest form. =
  24. 24.What is the HCF of 5 and 15?
  25. 25.Is 3/5 in its simplest form? (a) No (b) Yes
  26. 26.Write 21/28 in its simplest form. =
  27. 27.What is the HCF of 2 and 14?
  28. 28.What is the HCF of 24 and 32?
  29. 29.Write 15/25 in its simplest form. =
  30. 30.Write 12/28 in its simplest form. =
  31. 31.Is 6/54 in its simplest form? (a) Yes (b) No
  32. 32.Is 4/6 in its simplest form? (a) No (b) Yes
  33. 33.Write 54/63 in its simplest form. =
  34. 34.Write 6/54 in its simplest form. =
  35. 35.Write 8/72 in its simplest form. =
  36. 36.Write 42/49 in its simplest form. =
  37. 37.Write 40/48 in its simplest form. =
  38. 38.Is 6/30 in its simplest form? (a) No (b) Yes
  39. 39.Write 9/90 in its simplest form. =
  40. 40.What is the HCF of 24 and 80?

Answer key

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

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