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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 248 · 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 5 and 40?
  2. 2.What is the HCF of 4 and 6?
  3. 3.What is the HCF of 27 and 90?
  4. 4.Is 20/25 in its simplest form? (a) No (b) Yes
  5. 5.Write 5/40 in its simplest form. =
  6. 6.Is 1/7 in its simplest form? (a) No (b) Yes
  7. 7.What is the HCF of 10 and 16?
  8. 8.What is the HCF of 6 and 9?
  9. 9.What is the HCF of 3 and 12?
  10. 10.What is the HCF of 64 and 72?
  11. 11.Is 1/6 in its simplest form? (a) Yes (b) No
  12. 12.Is 1/4 in its simplest form? (a) Yes (b) No
  13. 13.Write 45/50 in its simplest form. =
  14. 14.What is the HCF of 12 and 30?
  15. 15.Write 4/24 in its simplest form. =
  16. 16.Write 3/6 in its simplest form. =
  17. 17.Is 3/7 in its simplest form? (a) No (b) Yes
  18. 18.Write 27/63 in its simplest form. =
  19. 19.What is the HCF of 5 and 15?
  20. 20.Write 18/42 in its simplest form. =
  21. 21.Is 2/3 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 18 and 42?
  23. 23.Write 9/72 in its simplest form. =
  24. 24.Write 28/35 in its simplest form. =
  25. 25.Write 4/12 in its simplest form. =
  26. 26.What is the HCF of 12 and 14?
  27. 27.Is 27/30 in its simplest form? (a) No (b) Yes
  28. 28.Is 8/10 in its simplest form? (a) No (b) Yes
  29. 29.What is the HCF of 2 and 12?
  30. 30.What is the HCF of 5 and 45?
  31. 31.Write 6/20 in its simplest form. =
  32. 32.Write 49/63 in its simplest form. =
  33. 33.Is 6/10 in its simplest form? (a) No (b) Yes
  34. 34.Write 4/32 in its simplest form. =
  35. 35.Is 36/40 in its simplest form? (a) Yes (b) No
  36. 36.Is 6/18 in its simplest form? (a) No (b) Yes
  37. 37.Write 10/16 in its simplest form. =
  38. 38.Write 10/12 in its simplest form. =
  39. 39.Is 6/48 in its simplest form? (a) No (b) Yes
  40. 40.Write 8/28 in its simplest form. =

Answer key

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

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