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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 516 · 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 15/25 in its simplest form. =
  2. 2.Write 3/9 in its simplest form. =
  3. 3.What is the HCF of 6 and 24?
  4. 4.Is 1/4 in its simplest form? (a) No (b) Yes
  5. 5.Write 48/56 in its simplest form. =
  6. 6.Write 2/4 in its simplest form. =
  7. 7.Write 9/15 in its simplest form. =
  8. 8.Is 1/2 in its simplest form? (a) Yes (b) No
  9. 9.What is the HCF of 63 and 72?
  10. 10.Write 20/25 in its simplest form. =
  11. 11.What is the HCF of 5 and 45?
  12. 12.Write 7/35 in its simplest form. =
  13. 13.What is the HCF of 40 and 72?
  14. 14.Is 1/5 in its simplest form? (a) Yes (b) No
  15. 15.Write 30/42 in its simplest form. =
  16. 16.Write 28/35 in its simplest form. =
  17. 17.What is the HCF of 4 and 24?
  18. 18.What is the HCF of 6 and 15?
  19. 19.Write 4/10 in its simplest form. =
  20. 20.Write 32/36 in its simplest form. =
  21. 21.Write 4/16 in its simplest form. =
  22. 22.What is the HCF of 18 and 30?
  23. 23.Write 4/40 in its simplest form. =
  24. 24.Write 4/8 in its simplest form. =
  25. 25.What is the HCF of 21 and 70?
  26. 26.Is 24/28 in its simplest form? (a) Yes (b) No
  27. 27.Write 63/90 in its simplest form. =
  28. 28.Is 5/30 in its simplest form? (a) No (b) Yes
  29. 29.Write 9/45 in its simplest form. =
  30. 30.Write 4/12 in its simplest form. =
  31. 31.Is 5/8 in its simplest form? (a) Yes (b) No
  32. 32.Is 5/45 in its simplest form? (a) No (b) Yes
  33. 33.Write 7/14 in its simplest form. =
  34. 34.Write 16/20 in its simplest form. =
  35. 35.Write 6/42 in its simplest form. =
  36. 36.What is the HCF of 2 and 12?
  37. 37.What is the HCF of 8 and 18?
  38. 38.Write 8/24 in its simplest form. =
  39. 39.Write 6/18 in its simplest form. =
  40. 40.Is 42/48 in its simplest form? (a) Yes (b) No

Answer key

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

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