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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 520 · 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 24/30 in its simplest form. =
  2. 2.What is the HCF of 8 and 20?
  3. 3.Is 6/12 in its simplest form? (a) Yes (b) No
  4. 4.Is 30/35 in its simplest form? (a) No (b) Yes
  5. 5.What is the HCF of 24 and 40?
  6. 6.Write 10/18 in its simplest form. =
  7. 7.Write 8/72 in its simplest form. =
  8. 8.Is 4/6 in its simplest form? (a) Yes (b) No
  9. 9.Is 4/18 in its simplest form? (a) No (b) Yes
  10. 10.Is 9/12 in its simplest form? (a) No (b) Yes
  11. 11.Is 1/5 in its simplest form? (a) Yes (b) No
  12. 12.Write 12/32 in its simplest form. =
  13. 13.Is 16/28 in its simplest form? (a) No (b) Yes
  14. 14.Is 8/20 in its simplest form? (a) No (b) Yes
  15. 15.What is the HCF of 10 and 15?
  16. 16.What is the HCF of 4 and 10?
  17. 17.What is the HCF of 14 and 18?
  18. 18.Write 56/64 in its simplest form. =
  19. 19.Is 2/3 in its simplest form? (a) No (b) Yes
  20. 20.What is the HCF of 32 and 72?
  21. 21.Write 6/60 in its simplest form. =
  22. 22.What is the HCF of 7 and 21?
  23. 23.Write 8/28 in its simplest form. =
  24. 24.Write 7/70 in its simplest form. =
  25. 25.Write 8/16 in its simplest form. =
  26. 26.What is the HCF of 56 and 80?
  27. 27.Is 5/45 in its simplest form? (a) No (b) Yes
  28. 28.Write 3/15 in its simplest form. =
  29. 29.Is 10/45 in its simplest form? (a) Yes (b) No
  30. 30.Write 6/16 in its simplest form. =
  31. 31.Is 6/9 in its simplest form? (a) No (b) Yes
  32. 32.Is 2/5 in its simplest form? (a) No (b) Yes
  33. 33.Is 24/28 in its simplest form? (a) No (b) Yes
  34. 34.What is the HCF of 21 and 28?
  35. 35.Write 6/15 in its simplest form. =
  36. 36.What is the HCF of 4 and 36?
  37. 37.What is the HCF of 5 and 25?
  38. 38.What is the HCF of 3 and 12?
  39. 39.What is the HCF of 24 and 42?
  40. 40.Write 4/16 in its simplest form. =

Answer key

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

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