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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 180 · 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 4/5 in its simplest form? (a) Yes (b) No
  2. 2.Write 5/15 in its simplest form. =
  3. 3.What is the HCF of 8 and 12?
  4. 4.What is the HCF of 21 and 27?
  5. 5.Write 24/80 in its simplest form. =
  6. 6.Is 2/9 in its simplest form? (a) No (b) Yes
  7. 7.What is the HCF of 5 and 15?
  8. 8.What is the HCF of 7 and 28?
  9. 9.What is the HCF of 42 and 48?
  10. 10.What is the HCF of 4 and 32?
  11. 11.Is 5/7 in its simplest form? (a) Yes (b) No
  12. 12.Write 14/18 in its simplest form. =
  13. 13.Write 56/72 in its simplest form. =
  14. 14.Write 6/10 in its simplest form. =
  15. 15.What is the HCF of 3 and 30?
  16. 16.Write 4/10 in its simplest form. =
  17. 17.What is the HCF of 24 and 42?
  18. 18.Is 20/24 in its simplest form? (a) No (b) Yes
  19. 19.Is 35/45 in its simplest form? (a) No (b) Yes
  20. 20.Write 12/54 in its simplest form. =
  21. 21.Is 8/12 in its simplest form? (a) No (b) Yes
  22. 22.Write 28/36 in its simplest form. =
  23. 23.Write 35/49 in its simplest form. =
  24. 24.Is 7/10 in its simplest form? (a) Yes (b) No
  25. 25.Is 1/2 in its simplest form? (a) No (b) Yes
  26. 26.Write 24/27 in its simplest form. =
  27. 27.Is 8/9 in its simplest form? (a) No (b) Yes
  28. 28.Write 6/14 in its simplest form. =
  29. 29.Write 24/64 in its simplest form. =
  30. 30.What is the HCF of 24 and 56?
  31. 31.What is the HCF of 3 and 9?
  32. 32.What is the HCF of 8 and 32?
  33. 33.What is the HCF of 9 and 36?
  34. 34.Write 12/14 in its simplest form. =
  35. 35.Is 1/8 in its simplest form? (a) No (b) Yes
  36. 36.Is 12/32 in its simplest form? (a) No (b) Yes
  37. 37.What is the HCF of 15 and 21?
  38. 38.Is 18/21 in its simplest form? (a) No (b) Yes
  39. 39.Write 12/30 in its simplest form. =
  40. 40.Is 6/36 in its simplest form? (a) Yes (b) No

Answer key

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

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