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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 296 · 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 5/50 in its simplest form. =
  2. 2.Write 6/20 in its simplest form. =
  3. 3.What is the HCF of 15 and 18?
  4. 4.Is 6/48 in its simplest form? (a) Yes (b) No
  5. 5.What is the HCF of 32 and 72?
  6. 6.Write 30/36 in its simplest form. =
  7. 7.What is the HCF of 6 and 42?
  8. 8.Write 5/35 in its simplest form. =
  9. 9.What is the HCF of 8 and 16?
  10. 10.Is 16/28 in its simplest form? (a) Yes (b) No
  11. 11.Write 7/49 in its simplest form. =
  12. 12.Write 2/6 in its simplest form. =
  13. 13.What is the HCF of 15 and 50?
  14. 14.Write 14/35 in its simplest form. =
  15. 15.Write 8/18 in its simplest form. =
  16. 16.Write 6/10 in its simplest form. =
  17. 17.Write 54/60 in its simplest form. =
  18. 18.Is 2/5 in its simplest form? (a) Yes (b) No
  19. 19.Write 56/64 in its simplest form. =
  20. 20.What is the HCF of 18 and 20?
  21. 21.What is the HCF of 8 and 18?
  22. 22.Write 72/81 in its simplest form. =
  23. 23.Write 6/48 in its simplest form. =
  24. 24.What is the HCF of 40 and 45?
  25. 25.What is the HCF of 10 and 14?
  26. 26.Write 8/48 in its simplest form. =
  27. 27.Write 18/42 in its simplest form. =
  28. 28.Is 9/12 in its simplest form? (a) No (b) Yes
  29. 29.Is 12/28 in its simplest form? (a) No (b) Yes
  30. 30.Write 3/27 in its simplest form. =
  31. 31.Write 21/27 in its simplest form. =
  32. 32.Write 4/10 in its simplest form. =
  33. 33.Is 8/10 in its simplest form? (a) No (b) Yes
  34. 34.Is 25/45 in its simplest form? (a) No (b) Yes
  35. 35.Is 24/54 in its simplest form? (a) No (b) Yes
  36. 36.Is 2/3 in its simplest form? (a) Yes (b) No
  37. 37.What is the HCF of 21 and 27?
  38. 38.What is the HCF of 15 and 27?
  39. 39.What is the HCF of 8 and 80?
  40. 40.Write 3/15 in its simplest form. =

Answer key

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

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