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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 968 · 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 4/18 in its simplest form. =
  2. 2.What is the HCF of 5 and 45?
  3. 3.Is 7/8 in its simplest form? (a) No (b) Yes
  4. 4.Write 25/45 in its simplest form. =
  5. 5.Write 45/63 in its simplest form. =
  6. 6.Is 1/3 in its simplest form? (a) No (b) Yes
  7. 7.What is the HCF of 3 and 6?
  8. 8.What is the HCF of 30 and 36?
  9. 9.Is 10/15 in its simplest form? (a) No (b) Yes
  10. 10.Is 8/20 in its simplest form? (a) Yes (b) No
  11. 11.Write 15/18 in its simplest form. =
  12. 12.Is 35/40 in its simplest form? (a) No (b) Yes
  13. 13.Is 3/8 in its simplest form? (a) No (b) Yes
  14. 14.Write 32/56 in its simplest form. =
  15. 15.Is 2/5 in its simplest form? (a) Yes (b) No
  16. 16.Write 8/18 in its simplest form. =
  17. 17.What is the HCF of 27 and 72?
  18. 18.What is the HCF of 35 and 56?
  19. 19.Is 3/10 in its simplest form? (a) Yes (b) No
  20. 20.What is the HCF of 42 and 60?
  21. 21.What is the HCF of 4 and 10?
  22. 22.Write 20/36 in its simplest form. =
  23. 23.Write 36/42 in its simplest form. =
  24. 24.What is the HCF of 15 and 18?
  25. 25.Is 1/9 in its simplest form? (a) No (b) Yes
  26. 26.Is 7/10 in its simplest form? (a) No (b) Yes
  27. 27.What is the HCF of 63 and 70?
  28. 28.Is 30/36 in its simplest form? (a) No (b) Yes
  29. 29.What is the HCF of 45 and 50?
  30. 30.Write 35/42 in its simplest form. =
  31. 31.Is 2/9 in its simplest form? (a) No (b) Yes
  32. 32.Is 2/18 in its simplest form? (a) No (b) Yes
  33. 33.Write 6/16 in its simplest form. =
  34. 34.Write 14/16 in its simplest form. =
  35. 35.Write 15/20 in its simplest form. =
  36. 36.What is the HCF of 9 and 30?
  37. 37.Write 9/15 in its simplest form. =
  38. 38.Is 12/27 in its simplest form? (a) Yes (b) No
  39. 39.Write 3/12 in its simplest form. =
  40. 40.Write 64/72 in its simplest form. =

Answer key

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

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