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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 247 · 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.Is 1/9 in its simplest form? (a) No (b) Yes
  2. 2.Write 16/36 in its simplest form. =
  3. 3.Is 1/4 in its simplest form? (a) Yes (b) No
  4. 4.What is the HCF of 5 and 30?
  5. 5.What is the HCF of 12 and 14?
  6. 6.What is the HCF of 32 and 56?
  7. 7.Write 25/40 in its simplest form. =
  8. 8.Write 36/45 in its simplest form. =
  9. 9.What is the HCF of 49 and 63?
  10. 10.What is the HCF of 30 and 42?
  11. 11.What is the HCF of 7 and 56?
  12. 12.Write 48/54 in its simplest form. =
  13. 13.Is 2/6 in its simplest form? (a) No (b) Yes
  14. 14.Write 5/15 in its simplest form. =
  15. 15.Write 10/16 in its simplest form. =
  16. 16.What is the HCF of 14 and 35?
  17. 17.What is the HCF of 20 and 35?
  18. 18.Write 35/45 in its simplest form. =
  19. 19.What is the HCF of 35 and 45?
  20. 20.Is 6/9 in its simplest form? (a) No (b) Yes
  21. 21.What is the HCF of 18 and 30?
  22. 22.What is the HCF of 6 and 8?
  23. 23.Is 15/50 in its simplest form? (a) No (b) Yes
  24. 24.Is 3/5 in its simplest form? (a) Yes (b) No
  25. 25.Write 15/20 in its simplest form. =
  26. 26.Is 6/16 in its simplest form? (a) No (b) Yes
  27. 27.Is 14/20 in its simplest form? (a) No (b) Yes
  28. 28.Is 4/5 in its simplest form? (a) Yes (b) No
  29. 29.Write 4/8 in its simplest form. =
  30. 30.Is 5/7 in its simplest form? (a) Yes (b) No
  31. 31.What is the HCF of 24 and 32?
  32. 32.What is the HCF of 9 and 72?
  33. 33.Write 40/56 in its simplest form. =
  34. 34.What is the HCF of 21 and 27?
  35. 35.What is the HCF of 9 and 36?
  36. 36.Write 12/40 in its simplest form. =
  37. 37.Is 8/9 in its simplest form? (a) Yes (b) No
  38. 38.Write 30/35 in its simplest form. =
  39. 39.What is the HCF of 27 and 63?
  40. 40.Write 18/45 in its simplest form. =

Answer key

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

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