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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 379 · 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 42/54 in its simplest form? (a) Yes (b) No
  2. 2.What is the HCF of 35 and 63?
  3. 3.Is 6/60 in its simplest form? (a) Yes (b) No
  4. 4.Is 4/7 in its simplest form? (a) No (b) Yes
  5. 5.What is the HCF of 5 and 40?
  6. 6.Is 4/9 in its simplest form? (a) No (b) Yes
  7. 7.Is 4/24 in its simplest form? (a) Yes (b) No
  8. 8.Write 72/80 in its simplest form. =
  9. 9.What is the HCF of 12 and 20?
  10. 10.What is the HCF of 15 and 21?
  11. 11.Write 14/16 in its simplest form. =
  12. 12.Write 9/30 in its simplest form. =
  13. 13.Write 2/18 in its simplest form. =
  14. 14.What is the HCF of 48 and 54?
  15. 15.Write 15/20 in its simplest form. =
  16. 16.Write 4/18 in its simplest form. =
  17. 17.What is the HCF of 24 and 64?
  18. 18.Write 20/36 in its simplest form. =
  19. 19.What is the HCF of 4 and 8?
  20. 20.Write 5/30 in its simplest form. =
  21. 21.What is the HCF of 4 and 14?
  22. 22.Is 5/25 in its simplest form? (a) Yes (b) No
  23. 23.Is 5/9 in its simplest form? (a) Yes (b) No
  24. 24.What is the HCF of 6 and 18?
  25. 25.Write 36/42 in its simplest form. =
  26. 26.Write 35/42 in its simplest form. =
  27. 27.What is the HCF of 21 and 30?
  28. 28.What is the HCF of 27 and 30?
  29. 29.Write 4/14 in its simplest form. =
  30. 30.What is the HCF of 10 and 45?
  31. 31.What is the HCF of 14 and 63?
  32. 32.Write 10/45 in its simplest form. =
  33. 33.Is 18/60 in its simplest form? (a) No (b) Yes
  34. 34.Write 20/28 in its simplest form. =
  35. 35.Write 8/14 in its simplest form. =
  36. 36.Is 4/14 in its simplest form? (a) Yes (b) No
  37. 37.Write 9/45 in its simplest form. =
  38. 38.Write 49/63 in its simplest form. =
  39. 39.Is 6/16 in its simplest form? (a) Yes (b) No
  40. 40.Write 35/63 in its simplest form. =

Answer key

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

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