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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 478 · 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 7/56 in its simplest form. =
  2. 2.Is 2/5 in its simplest form? (a) No (b) Yes
  3. 3.Is 9/30 in its simplest form? (a) Yes (b) No
  4. 4.Write 72/80 in its simplest form. =
  5. 5.Write 30/42 in its simplest form. =
  6. 6.Write 8/80 in its simplest form. =
  7. 7.Write 10/35 in its simplest form. =
  8. 8.Write 12/54 in its simplest form. =
  9. 9.What is the HCF of 3 and 9?
  10. 10.Is 36/40 in its simplest form? (a) No (b) Yes
  11. 11.What is the HCF of 6 and 9?
  12. 12.Write 4/14 in its simplest form. =
  13. 13.Write 24/42 in its simplest form. =
  14. 14.What is the HCF of 20 and 25?
  15. 15.Write 12/42 in its simplest form. =
  16. 16.Is 4/5 in its simplest form? (a) No (b) Yes
  17. 17.Is 2/3 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 15 and 27?
  19. 19.What is the HCF of 54 and 63?
  20. 20.What is the HCF of 8 and 28?
  21. 21.Is 8/18 in its simplest form? (a) Yes (b) No
  22. 22.What is the HCF of 24 and 30?
  23. 23.Write 27/30 in its simplest form. =
  24. 24.Write 4/36 in its simplest form. =
  25. 25.Is 2/9 in its simplest form? (a) Yes (b) No
  26. 26.What is the HCF of 63 and 72?
  27. 27.What is the HCF of 36 and 45?
  28. 28.Is 14/18 in its simplest form? (a) Yes (b) No
  29. 29.Is 12/16 in its simplest form? (a) No (b) Yes
  30. 30.Is 7/9 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 9 and 72?
  32. 32.Is 4/9 in its simplest form? (a) Yes (b) No
  33. 33.Is 15/40 in its simplest form? (a) Yes (b) No
  34. 34.What is the HCF of 8 and 10?
  35. 35.Write 6/15 in its simplest form. =
  36. 36.What is the HCF of 12 and 16?
  37. 37.What is the HCF of 7 and 42?
  38. 38.What is the HCF of 24 and 54?
  39. 39.Write 6/18 in its simplest form. =
  40. 40.Is 5/15 in its simplest form? (a) Yes (b) No

Answer key

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

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