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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 944 · 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 7 and 49?
  2. 2.Is 30/48 in its simplest form? (a) Yes (b) No
  3. 3.Is 4/5 in its simplest form? (a) Yes (b) No
  4. 4.Write 4/36 in its simplest form. =
  5. 5.Write 8/12 in its simplest form. =
  6. 6.Write 6/18 in its simplest form. =
  7. 7.What is the HCF of 8 and 40?
  8. 8.Write 20/32 in its simplest form. =
  9. 9.Write 32/40 in its simplest form. =
  10. 10.What is the HCF of 8 and 28?
  11. 11.Write 3/12 in its simplest form. =
  12. 12.Write 6/15 in its simplest form. =
  13. 13.Write 9/63 in its simplest form. =
  14. 14.Is 5/8 in its simplest form? (a) Yes (b) No
  15. 15.Is 12/28 in its simplest form? (a) Yes (b) No
  16. 16.Write 6/54 in its simplest form. =
  17. 17.What is the HCF of 45 and 81?
  18. 18.Is 6/42 in its simplest form? (a) No (b) Yes
  19. 19.Write 12/40 in its simplest form. =
  20. 20.What is the HCF of 18 and 45?
  21. 21.Write 18/24 in its simplest form. =
  22. 22.Write 4/6 in its simplest form. =
  23. 23.Is 8/20 in its simplest form? (a) No (b) Yes
  24. 24.What is the HCF of 36 and 45?
  25. 25.What is the HCF of 21 and 24?
  26. 26.Write 4/12 in its simplest form. =
  27. 27.Write 30/48 in its simplest form. =
  28. 28.What is the HCF of 10 and 12?
  29. 29.Write 12/28 in its simplest form. =
  30. 30.Is 6/15 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 9 and 90?
  32. 32.Write 35/50 in its simplest form. =
  33. 33.Write 10/15 in its simplest form. =
  34. 34.Is 15/18 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 15 and 27?
  36. 36.Is 5/35 in its simplest form? (a) Yes (b) No
  37. 37.Write 18/63 in its simplest form. =
  38. 38.Write 12/42 in its simplest form. =
  39. 39.Write 36/42 in its simplest form. =
  40. 40.Is 6/30 in its simplest form? (a) No (b) Yes

Answer key

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

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