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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 619 · 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 18/20 in its simplest form. =
  2. 2.Is 4/5 in its simplest form? (a) Yes (b) No
  3. 3.What is the HCF of 40 and 72?
  4. 4.Write 24/64 in its simplest form. =
  5. 5.Write 32/72 in its simplest form. =
  6. 6.Write 3/21 in its simplest form. =
  7. 7.Write 5/10 in its simplest form. =
  8. 8.Is 32/36 in its simplest form? (a) Yes (b) No
  9. 9.Write 36/45 in its simplest form. =
  10. 10.Is 28/32 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 8 and 10?
  12. 12.Is 12/30 in its simplest form? (a) No (b) Yes
  13. 13.Is 3/7 in its simplest form? (a) No (b) Yes
  14. 14.Is 2/3 in its simplest form? (a) No (b) Yes
  15. 15.Write 9/30 in its simplest form. =
  16. 16.Write 9/21 in its simplest form. =
  17. 17.Is 54/60 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 8 and 18?
  19. 19.Write 14/20 in its simplest form. =
  20. 20.What is the HCF of 3 and 9?
  21. 21.What is the HCF of 7 and 14?
  22. 22.Is 10/16 in its simplest form? (a) No (b) Yes
  23. 23.Write 7/14 in its simplest form. =
  24. 24.Is 3/8 in its simplest form? (a) No (b) Yes
  25. 25.Write 14/35 in its simplest form. =
  26. 26.Write 2/12 in its simplest form. =
  27. 27.Is 1/7 in its simplest form? (a) No (b) Yes
  28. 28.Write 4/12 in its simplest form. =
  29. 29.What is the HCF of 21 and 30?
  30. 30.Is 7/9 in its simplest form? (a) No (b) Yes
  31. 31.Is 6/10 in its simplest form? (a) No (b) Yes
  32. 32.What is the HCF of 72 and 81?
  33. 33.Write 4/18 in its simplest form. =
  34. 34.What is the HCF of 48 and 54?
  35. 35.Is 8/12 in its simplest form? (a) No (b) Yes
  36. 36.What is the HCF of 24 and 27?
  37. 37.Is 9/10 in its simplest form? (a) No (b) Yes
  38. 38.Write 20/28 in its simplest form. =
  39. 39.Is 10/15 in its simplest form? (a) Yes (b) No
  40. 40.Is 4/28 in its simplest form? (a) No (b) Yes

Answer key

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

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