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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 723 · 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 18/21 in its simplest form. =
  2. 2.What is the HCF of 8 and 12?
  3. 3.Write 21/24 in its simplest form. =
  4. 4.Write 2/14 in its simplest form. =
  5. 5.What is the HCF of 40 and 56?
  6. 6.Is 2/10 in its simplest form? (a) No (b) Yes
  7. 7.Is 1/10 in its simplest form? (a) Yes (b) No
  8. 8.Write 7/21 in its simplest form. =
  9. 9.Write 28/32 in its simplest form. =
  10. 10.What is the HCF of 6 and 12?
  11. 11.Write 14/20 in its simplest form. =
  12. 12.What is the HCF of 4 and 12?
  13. 13.Is 3/15 in its simplest form? (a) Yes (b) No
  14. 14.What is the HCF of 12 and 15?
  15. 15.Is 5/6 in its simplest form? (a) Yes (b) No
  16. 16.Write 28/40 in its simplest form. =
  17. 17.What is the HCF of 24 and 80?
  18. 18.Write 27/36 in its simplest form. =
  19. 19.Write 6/14 in its simplest form. =
  20. 20.What is the HCF of 56 and 80?
  21. 21.What is the HCF of 10 and 14?
  22. 22.Is 2/16 in its simplest form? (a) No (b) Yes
  23. 23.Is 3/8 in its simplest form? (a) No (b) Yes
  24. 24.What is the HCF of 24 and 27?
  25. 25.Is 6/7 in its simplest form? (a) Yes (b) No
  26. 26.Write 45/50 in its simplest form. =
  27. 27.Is 6/60 in its simplest form? (a) No (b) Yes
  28. 28.Is 7/10 in its simplest form? (a) Yes (b) No
  29. 29.Write 25/40 in its simplest form. =
  30. 30.Is 16/28 in its simplest form? (a) No (b) Yes
  31. 31.Is 3/10 in its simplest form? (a) No (b) Yes
  32. 32.Is 1/9 in its simplest form? (a) Yes (b) No
  33. 33.Write 24/30 in its simplest form. =
  34. 34.Write 24/28 in its simplest form. =
  35. 35.Write 18/20 in its simplest form. =
  36. 36.What is the HCF of 30 and 36?
  37. 37.What is the HCF of 12 and 21?
  38. 38.Is 7/8 in its simplest form? (a) Yes (b) No
  39. 39.Write 16/20 in its simplest form. =
  40. 40.Is 24/28 in its simplest form? (a) No (b) Yes

Answer key

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

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