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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 963 · 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 1/5 in its simplest form? (a) Yes (b) No
  2. 2.Write 8/80 in its simplest form. =
  3. 3.What is the HCF of 24 and 28?
  4. 4.Is 8/28 in its simplest form? (a) No (b) Yes
  5. 5.Write 42/54 in its simplest form. =
  6. 6.Write 21/27 in its simplest form. =
  7. 7.Write 48/56 in its simplest form. =
  8. 8.Write 36/40 in its simplest form. =
  9. 9.Is 10/45 in its simplest form? (a) No (b) Yes
  10. 10.Write 3/18 in its simplest form. =
  11. 11.What is the HCF of 63 and 90?
  12. 12.Is 5/8 in its simplest form? (a) Yes (b) No
  13. 13.What is the HCF of 63 and 70?
  14. 14.Is 9/10 in its simplest form? (a) No (b) Yes
  15. 15.Is 3/12 in its simplest form? (a) Yes (b) No
  16. 16.Write 9/45 in its simplest form. =
  17. 17.What is the HCF of 42 and 54?
  18. 18.What is the HCF of 48 and 56?
  19. 19.Write 63/81 in its simplest form. =
  20. 20.Write 12/21 in its simplest form. =
  21. 21.Write 2/8 in its simplest form. =
  22. 22.Is 10/35 in its simplest form? (a) No (b) Yes
  23. 23.Is 14/16 in its simplest form? (a) No (b) Yes
  24. 24.Write 28/40 in its simplest form. =
  25. 25.Write 6/9 in its simplest form. =
  26. 26.Is 2/14 in its simplest form? (a) No (b) Yes
  27. 27.Is 18/30 in its simplest form? (a) No (b) Yes
  28. 28.Is 6/15 in its simplest form? (a) Yes (b) No
  29. 29.Is 4/9 in its simplest form? (a) No (b) Yes
  30. 30.Is 5/10 in its simplest form? (a) Yes (b) No
  31. 31.Is 4/40 in its simplest form? (a) Yes (b) No
  32. 32.Write 21/35 in its simplest form. =
  33. 33.What is the HCF of 5 and 40?
  34. 34.What is the HCF of 21 and 28?
  35. 35.Is 8/10 in its simplest form? (a) Yes (b) No
  36. 36.Write 40/64 in its simplest form. =
  37. 37.What is the HCF of 6 and 9?
  38. 38.Is 3/21 in its simplest form? (a) Yes (b) No
  39. 39.Is 12/20 in its simplest form? (a) Yes (b) No
  40. 40.Write 42/60 in its simplest form. =

Answer key

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

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