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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 903 · 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 9 and 90?
  2. 2.Is 4/16 in its simplest form? (a) Yes (b) No
  3. 3.Write 42/60 in its simplest form. =
  4. 4.What is the HCF of 8 and 10?
  5. 5.Write 6/20 in its simplest form. =
  6. 6.Is 4/7 in its simplest form? (a) Yes (b) No
  7. 7.Write 3/15 in its simplest form. =
  8. 8.Is 1/7 in its simplest form? (a) Yes (b) No
  9. 9.Is 16/20 in its simplest form? (a) No (b) Yes
  10. 10.Is 8/18 in its simplest form? (a) No (b) Yes
  11. 11.What is the HCF of 6 and 12?
  12. 12.What is the HCF of 28 and 63?
  13. 13.Write 14/35 in its simplest form. =
  14. 14.What is the HCF of 25 and 45?
  15. 15.Is 3/7 in its simplest form? (a) Yes (b) No
  16. 16.Is 1/9 in its simplest form? (a) Yes (b) No
  17. 17.Write 12/42 in its simplest form. =
  18. 18.What is the HCF of 81 and 90?
  19. 19.What is the HCF of 12 and 28?
  20. 20.Is 4/9 in its simplest form? (a) Yes (b) No
  21. 21.Is 16/36 in its simplest form? (a) Yes (b) No
  22. 22.What is the HCF of 24 and 27?
  23. 23.What is the HCF of 27 and 72?
  24. 24.What is the HCF of 21 and 28?
  25. 25.What is the HCF of 16 and 28?
  26. 26.Is 6/9 in its simplest form? (a) No (b) Yes
  27. 27.Is 7/10 in its simplest form? (a) No (b) Yes
  28. 28.Is 30/54 in its simplest form? (a) Yes (b) No
  29. 29.What is the HCF of 63 and 70?
  30. 30.What is the HCF of 36 and 45?
  31. 31.What is the HCF of 20 and 28?
  32. 32.What is the HCF of 21 and 27?
  33. 33.What is the HCF of 6 and 10?
  34. 34.What is the HCF of 27 and 45?
  35. 35.Write 21/27 in its simplest form. =
  36. 36.Write 2/8 in its simplest form. =
  37. 37.Is 1/2 in its simplest form? (a) Yes (b) No
  38. 38.What is the HCF of 35 and 49?
  39. 39.What is the HCF of 28 and 35?
  40. 40.What is the HCF of 4 and 10?

Answer key

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

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