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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 863 · 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 7/35 in its simplest form. =
  2. 2.Write 56/80 in its simplest form. =
  3. 3.Write 12/30 in its simplest form. =
  4. 4.Is 7/8 in its simplest form? (a) Yes (b) No
  5. 5.What is the HCF of 9 and 30?
  6. 6.Write 42/60 in its simplest form. =
  7. 7.What is the HCF of 24 and 40?
  8. 8.Is 5/15 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 16 and 72?
  10. 10.What is the HCF of 15 and 25?
  11. 11.Is 2/5 in its simplest form? (a) Yes (b) No
  12. 12.Write 8/48 in its simplest form. =
  13. 13.Is 3/30 in its simplest form? (a) Yes (b) No
  14. 14.What is the HCF of 4 and 36?
  15. 15.Write 12/42 in its simplest form. =
  16. 16.Write 3/12 in its simplest form. =
  17. 17.Write 9/27 in its simplest form. =
  18. 18.What is the HCF of 30 and 48?
  19. 19.Write 10/15 in its simplest form. =
  20. 20.Is 25/40 in its simplest form? (a) Yes (b) No
  21. 21.Is 1/5 in its simplest form? (a) Yes (b) No
  22. 22.Write 28/35 in its simplest form. =
  23. 23.Write 63/72 in its simplest form. =
  24. 24.Is 5/6 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 6 and 18?
  26. 26.What is the HCF of 35 and 42?
  27. 27.What is the HCF of 8 and 80?
  28. 28.What is the HCF of 9 and 36?
  29. 29.Is 6/7 in its simplest form? (a) No (b) Yes
  30. 30.Write 21/56 in its simplest form. =
  31. 31.Is 2/12 in its simplest form? (a) No (b) Yes
  32. 32.What is the HCF of 20 and 45?
  33. 33.Write 8/16 in its simplest form. =
  34. 34.Is 16/18 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 45 and 50?
  36. 36.Write 10/45 in its simplest form. =
  37. 37.Is 4/5 in its simplest form? (a) Yes (b) No
  38. 38.What is the HCF of 27 and 36?
  39. 39.Is 4/40 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 25 and 35?

Answer key

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

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