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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 350 · 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 3/7 in its simplest form? (a) No (b) Yes
  2. 2.Write 2/18 in its simplest form. =
  3. 3.Is 5/9 in its simplest form? (a) Yes (b) No
  4. 4.What is the HCF of 4 and 6?
  5. 5.Write 72/80 in its simplest form. =
  6. 6.What is the HCF of 16 and 20?
  7. 7.What is the HCF of 20 and 36?
  8. 8.Write 4/20 in its simplest form. =
  9. 9.What is the HCF of 28 and 63?
  10. 10.What is the HCF of 64 and 72?
  11. 11.Write 45/72 in its simplest form. =
  12. 12.Write 63/81 in its simplest form. =
  13. 13.Write 2/10 in its simplest form. =
  14. 14.Is 2/3 in its simplest form? (a) No (b) Yes
  15. 15.Is 3/24 in its simplest form? (a) No (b) Yes
  16. 16.Write 16/28 in its simplest form. =
  17. 17.Write 45/50 in its simplest form. =
  18. 18.Is 24/54 in its simplest form? (a) Yes (b) No
  19. 19.Is 6/7 in its simplest form? (a) No (b) Yes
  20. 20.Write 21/70 in its simplest form. =
  21. 21.Write 12/20 in its simplest form. =
  22. 22.Write 63/70 in its simplest form. =
  23. 23.Is 6/10 in its simplest form? (a) Yes (b) No
  24. 24.What is the HCF of 6 and 42?
  25. 25.Is 4/16 in its simplest form? (a) No (b) Yes
  26. 26.What is the HCF of 6 and 18?
  27. 27.Write 2/12 in its simplest form. =
  28. 28.Write 18/45 in its simplest form. =
  29. 29.What is the HCF of 6 and 60?
  30. 30.Is 4/9 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 3 and 24?
  32. 32.What is the HCF of 7 and 70?
  33. 33.Is 54/60 in its simplest form? (a) No (b) Yes
  34. 34.Write 12/32 in its simplest form. =
  35. 35.Write 21/28 in its simplest form. =
  36. 36.What is the HCF of 2 and 8?
  37. 37.Write 35/40 in its simplest form. =
  38. 38.What is the HCF of 16 and 40?
  39. 39.Write 6/9 in its simplest form. =
  40. 40.Is 30/54 in its simplest form? (a) No (b) Yes

Answer key

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

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