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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 455 · 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.Write 6/60 in its simplest form. =
  2. 2.Write 8/48 in its simplest form. =
  3. 3.What is the HCF of 7 and 63?
  4. 4.Is 28/32 in its simplest form? (a) No (b) Yes
  5. 5.What is the HCF of 20 and 45?
  6. 6.Write 18/45 in its simplest form. =
  7. 7.Write 8/14 in its simplest form. =
  8. 8.Write 36/45 in its simplest form. =
  9. 9.Write 30/54 in its simplest form. =
  10. 10.Is 30/35 in its simplest form? (a) No (b) Yes
  11. 11.Write 54/60 in its simplest form. =
  12. 12.What is the HCF of 48 and 54?
  13. 13.Is 2/12 in its simplest form? (a) No (b) Yes
  14. 14.Write 40/45 in its simplest form. =
  15. 15.What is the HCF of 12 and 32?
  16. 16.Is 6/8 in its simplest form? (a) No (b) Yes
  17. 17.What is the HCF of 28 and 36?
  18. 18.What is the HCF of 3 and 9?
  19. 19.Write 45/81 in its simplest form. =
  20. 20.Write 20/28 in its simplest form. =
  21. 21.What is the HCF of 16 and 18?
  22. 22.Write 5/35 in its simplest form. =
  23. 23.Write 30/35 in its simplest form. =
  24. 24.What is the HCF of 45 and 63?
  25. 25.What is the HCF of 3 and 15?
  26. 26.What is the HCF of 42 and 60?
  27. 27.What is the HCF of 7 and 21?
  28. 28.Write 18/60 in its simplest form. =
  29. 29.Write 28/63 in its simplest form. =
  30. 30.Is 4/9 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 49 and 56?
  32. 32.What is the HCF of 8 and 48?
  33. 33.Write 63/72 in its simplest form. =
  34. 34.Is 8/9 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 21 and 35?
  36. 36.What is the HCF of 4 and 28?
  37. 37.Write 14/18 in its simplest form. =
  38. 38.What is the HCF of 6 and 10?
  39. 39.Write 9/18 in its simplest form. =
  40. 40.What is the HCF of 24 and 64?

Answer key

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

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