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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 937 · 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 18 and 24?
  2. 2.What is the HCF of 20 and 25?
  3. 3.Write 16/40 in its simplest form. =
  4. 4.Write 7/28 in its simplest form. =
  5. 5.What is the HCF of 21 and 70?
  6. 6.Write 15/20 in its simplest form. =
  7. 7.What is the HCF of 14 and 20?
  8. 8.Is 6/7 in its simplest form? (a) No (b) Yes
  9. 9.Write 4/12 in its simplest form. =
  10. 10.Write 12/32 in its simplest form. =
  11. 11.Is 2/18 in its simplest form? (a) Yes (b) No
  12. 12.What is the HCF of 9 and 36?
  13. 13.Is 1/8 in its simplest form? (a) Yes (b) No
  14. 14.What is the HCF of 16 and 18?
  15. 15.Is 42/48 in its simplest form? (a) Yes (b) No
  16. 16.Write 20/28 in its simplest form. =
  17. 17.Is 15/25 in its simplest form? (a) No (b) Yes
  18. 18.Write 16/18 in its simplest form. =
  19. 19.Write 5/15 in its simplest form. =
  20. 20.What is the HCF of 14 and 18?
  21. 21.Write 16/24 in its simplest form. =
  22. 22.Is 12/16 in its simplest form? (a) No (b) Yes
  23. 23.Write 21/30 in its simplest form. =
  24. 24.Write 24/64 in its simplest form. =
  25. 25.Write 8/80 in its simplest form. =
  26. 26.What is the HCF of 24 and 64?
  27. 27.Is 8/20 in its simplest form? (a) Yes (b) No
  28. 28.Write 9/54 in its simplest form. =
  29. 29.What is the HCF of 2 and 20?
  30. 30.Write 4/32 in its simplest form. =
  31. 31.Write 14/35 in its simplest form. =
  32. 32.Is 1/2 in its simplest form? (a) Yes (b) No
  33. 33.Write 40/48 in its simplest form. =
  34. 34.Write 8/72 in its simplest form. =
  35. 35.What is the HCF of 18 and 21?
  36. 36.Write 28/49 in its simplest form. =
  37. 37.Write 15/24 in its simplest form. =
  38. 38.Write 21/28 in its simplest form. =
  39. 39.Write 2/8 in its simplest form. =
  40. 40.Is 4/20 in its simplest form? (a) No (b) Yes

Answer key

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

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