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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 767 · 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 4 and 10?
  2. 2.Is 5/7 in its simplest form? (a) Yes (b) No
  3. 3.Write 12/18 in its simplest form. =
  4. 4.What is the HCF of 15 and 20?
  5. 5.What is the HCF of 72 and 81?
  6. 6.Write 20/36 in its simplest form. =
  7. 7.Write 35/45 in its simplest form. =
  8. 8.Is 12/28 in its simplest form? (a) Yes (b) No
  9. 9.Write 8/80 in its simplest form. =
  10. 10.Write 2/12 in its simplest form. =
  11. 11.Write 15/21 in its simplest form. =
  12. 12.Is 5/20 in its simplest form? (a) Yes (b) No
  13. 13.Write 10/25 in its simplest form. =
  14. 14.Write 12/30 in its simplest form. =
  15. 15.Write 15/40 in its simplest form. =
  16. 16.What is the HCF of 6 and 18?
  17. 17.Is 6/7 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 4 and 12?
  19. 19.Write 15/24 in its simplest form. =
  20. 20.What is the HCF of 4 and 40?
  21. 21.Is 6/21 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 24 and 27?
  23. 23.What is the HCF of 5 and 20?
  24. 24.Write 14/21 in its simplest form. =
  25. 25.Write 28/32 in its simplest form. =
  26. 26.What is the HCF of 30 and 54?
  27. 27.Write 6/54 in its simplest form. =
  28. 28.Write 18/21 in its simplest form. =
  29. 29.What is the HCF of 6 and 36?
  30. 30.What is the HCF of 5 and 45?
  31. 31.What is the HCF of 18 and 48?
  32. 32.Is 3/15 in its simplest form? (a) No (b) Yes
  33. 33.Write 6/18 in its simplest form. =
  34. 34.Is 28/32 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 2 and 12?
  36. 36.Is 2/10 in its simplest form? (a) Yes (b) No
  37. 37.Is 1/6 in its simplest form? (a) No (b) Yes
  38. 38.Write 7/70 in its simplest form. =
  39. 39.Is 32/36 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 3 and 30?

Answer key

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

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