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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 869 · 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 27/45 in its simplest form. =
  2. 2.Is 2/5 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 10 and 12?
  4. 4.Is 10/15 in its simplest form? (a) No (b) Yes
  5. 5.Write 27/72 in its simplest form. =
  6. 6.Write 6/9 in its simplest form. =
  7. 7.Write 15/50 in its simplest form. =
  8. 8.Write 9/72 in its simplest form. =
  9. 9.Is 1/3 in its simplest form? (a) No (b) Yes
  10. 10.Is 1/5 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 24 and 40?
  12. 12.Write 48/56 in its simplest form. =
  13. 13.What is the HCF of 8 and 16?
  14. 14.Is 18/42 in its simplest form? (a) No (b) Yes
  15. 15.Write 12/16 in its simplest form. =
  16. 16.Write 56/80 in its simplest form. =
  17. 17.Write 49/70 in its simplest form. =
  18. 18.Write 6/42 in its simplest form. =
  19. 19.What is the HCF of 10 and 35?
  20. 20.Write 14/21 in its simplest form. =
  21. 21.What is the HCF of 16 and 24?
  22. 22.What is the HCF of 8 and 24?
  23. 23.Write 4/24 in its simplest form. =
  24. 24.Write 7/70 in its simplest form. =
  25. 25.Is 15/40 in its simplest form? (a) No (b) Yes
  26. 26.Is 1/4 in its simplest form? (a) Yes (b) No
  27. 27.Is 10/45 in its simplest form? (a) Yes (b) No
  28. 28.Is 5/7 in its simplest form? (a) Yes (b) No
  29. 29.Write 9/24 in its simplest form. =
  30. 30.Is 40/45 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 3 and 27?
  32. 32.Write 24/27 in its simplest form. =
  33. 33.What is the HCF of 12 and 27?
  34. 34.Is 3/8 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 36 and 63?
  36. 36.What is the HCF of 7 and 49?
  37. 37.Write 20/36 in its simplest form. =
  38. 38.Write 6/54 in its simplest form. =
  39. 39.Write 10/35 in its simplest form. =
  40. 40.What is the HCF of 18 and 48?

Answer key

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

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