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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 646 · 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 10/45 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 24 and 28?
  3. 3.Write 3/15 in its simplest form. =
  4. 4.What is the HCF of 4 and 20?
  5. 5.Is 2/3 in its simplest form? (a) Yes (b) No
  6. 6.What is the HCF of 8 and 72?
  7. 7.Is 9/10 in its simplest form? (a) No (b) Yes
  8. 8.Write 56/72 in its simplest form. =
  9. 9.Write 35/49 in its simplest form. =
  10. 10.What is the HCF of 24 and 40?
  11. 11.What is the HCF of 20 and 36?
  12. 12.What is the HCF of 16 and 18?
  13. 13.Write 30/48 in its simplest form. =
  14. 14.Is 2/9 in its simplest form? (a) Yes (b) No
  15. 15.What is the HCF of 27 and 72?
  16. 16.Write 9/45 in its simplest form. =
  17. 17.Write 36/45 in its simplest form. =
  18. 18.Is 2/5 in its simplest form? (a) Yes (b) No
  19. 19.Is 21/30 in its simplest form? (a) Yes (b) No
  20. 20.What is the HCF of 27 and 36?
  21. 21.Write 8/28 in its simplest form. =
  22. 22.Write 4/24 in its simplest form. =
  23. 23.Is 7/9 in its simplest form? (a) No (b) Yes
  24. 24.Is 5/45 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 16 and 40?
  26. 26.What is the HCF of 8 and 48?
  27. 27.What is the HCF of 2 and 4?
  28. 28.Is 12/28 in its simplest form? (a) Yes (b) No
  29. 29.Is 1/8 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 15 and 24?
  31. 31.Is 14/16 in its simplest form? (a) No (b) Yes
  32. 32.What is the HCF of 35 and 56?
  33. 33.Write 3/6 in its simplest form. =
  34. 34.What is the HCF of 9 and 45?
  35. 35.Write 6/12 in its simplest form. =
  36. 36.What is the HCF of 4 and 12?
  37. 37.Write 24/32 in its simplest form. =
  38. 38.What is the HCF of 4 and 6?
  39. 39.Is 24/30 in its simplest form? (a) No (b) Yes
  40. 40.Write 35/56 in its simplest form. =

Answer key

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

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