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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 855 · 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.What is the HCF of 3 and 24?
  2. 2.Write 12/16 in its simplest form. =
  3. 3.What is the HCF of 6 and 60?
  4. 4.Is 5/35 in its simplest form? (a) Yes (b) No
  5. 5.Write 40/64 in its simplest form. =
  6. 6.Is 25/40 in its simplest form? (a) Yes (b) No
  7. 7.Is 4/9 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 32 and 36?
  9. 9.Write 8/80 in its simplest form. =
  10. 10.What is the HCF of 6 and 21?
  11. 11.Is 1/3 in its simplest form? (a) No (b) Yes
  12. 12.What is the HCF of 24 and 56?
  13. 13.Write 4/6 in its simplest form. =
  14. 14.Is 4/40 in its simplest form? (a) Yes (b) No
  15. 15.Write 4/36 in its simplest form. =
  16. 16.Write 9/15 in its simplest form. =
  17. 17.What is the HCF of 18 and 30?
  18. 18.What is the HCF of 63 and 72?
  19. 19.Write 18/30 in its simplest form. =
  20. 20.Is 3/24 in its simplest form? (a) No (b) Yes
  21. 21.Write 2/10 in its simplest form. =
  22. 22.What is the HCF of 6 and 42?
  23. 23.What is the HCF of 63 and 70?
  24. 24.Write 15/35 in its simplest form. =
  25. 25.Is 7/10 in its simplest form? (a) Yes (b) No
  26. 26.Is 1/10 in its simplest form? (a) Yes (b) No
  27. 27.Is 4/14 in its simplest form? (a) No (b) Yes
  28. 28.Is 5/8 in its simplest form? (a) Yes (b) No
  29. 29.Write 42/48 in its simplest form. =
  30. 30.Is 1/8 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 8 and 48?
  32. 32.What is the HCF of 56 and 64?
  33. 33.Write 15/40 in its simplest form. =
  34. 34.Is 7/8 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 6 and 12?
  36. 36.Write 20/35 in its simplest form. =
  37. 37.Is 8/9 in its simplest form? (a) No (b) Yes
  38. 38.Is 4/10 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 20 and 28?
  40. 40.Write 12/20 in its simplest form. =

Answer key

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

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