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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 854 · 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 7/10 in its simplest form? (a) No (b) Yes
  2. 2.Write 10/14 in its simplest form. =
  3. 3.Is 42/54 in its simplest form? (a) No (b) Yes
  4. 4.Write 6/30 in its simplest form. =
  5. 5.What is the HCF of 32 and 56?
  6. 6.Is 3/4 in its simplest form? (a) No (b) Yes
  7. 7.Write 81/90 in its simplest form. =
  8. 8.Write 28/40 in its simplest form. =
  9. 9.Is 1/7 in its simplest form? (a) Yes (b) No
  10. 10.Write 8/16 in its simplest form. =
  11. 11.What is the HCF of 18 and 60?
  12. 12.What is the HCF of 15 and 18?
  13. 13.What is the HCF of 5 and 25?
  14. 14.What is the HCF of 9 and 15?
  15. 15.What is the HCF of 16 and 20?
  16. 16.Write 7/70 in its simplest form. =
  17. 17.What is the HCF of 10 and 18?
  18. 18.What is the HCF of 42 and 48?
  19. 19.What is the HCF of 4 and 18?
  20. 20.Write 4/28 in its simplest form. =
  21. 21.What is the HCF of 6 and 48?
  22. 22.Write 35/45 in its simplest form. =
  23. 23.What is the HCF of 15 and 40?
  24. 24.Write 2/20 in its simplest form. =
  25. 25.Is 1/10 in its simplest form? (a) Yes (b) No
  26. 26.Write 36/63 in its simplest form. =
  27. 27.Is 6/18 in its simplest form? (a) No (b) Yes
  28. 28.Is 54/60 in its simplest form? (a) No (b) Yes
  29. 29.Write 9/63 in its simplest form. =
  30. 30.Write 6/54 in its simplest form. =
  31. 31.Is 5/8 in its simplest form? (a) No (b) Yes
  32. 32.Write 3/30 in its simplest form. =
  33. 33.What is the HCF of 6 and 30?
  34. 34.What is the HCF of 3 and 18?
  35. 35.Write 18/63 in its simplest form. =
  36. 36.Write 4/6 in its simplest form. =
  37. 37.What is the HCF of 24 and 30?
  38. 38.Write 9/36 in its simplest form. =
  39. 39.What is the HCF of 16 and 24?
  40. 40.What is the HCF of 18 and 81?

Answer key

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

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