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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 929 · 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.What is the HCF of 25 and 40?
  2. 2.What is the HCF of 4 and 40?
  3. 3.Is 1/3 in its simplest form? (a) No (b) Yes
  4. 4.Write 36/63 in its simplest form. =
  5. 5.What is the HCF of 15 and 35?
  6. 6.Is 12/20 in its simplest form? (a) Yes (b) No
  7. 7.Write 49/56 in its simplest form. =
  8. 8.What is the HCF of 15 and 24?
  9. 9.Is 12/54 in its simplest form? (a) Yes (b) No
  10. 10.Is 3/10 in its simplest form? (a) No (b) Yes
  11. 11.What is the HCF of 20 and 36?
  12. 12.Is 5/20 in its simplest form? (a) No (b) Yes
  13. 13.Is 5/8 in its simplest form? (a) No (b) Yes
  14. 14.What is the HCF of 8 and 28?
  15. 15.What is the HCF of 12 and 42?
  16. 16.Is 2/9 in its simplest form? (a) Yes (b) No
  17. 17.Write 8/48 in its simplest form. =
  18. 18.Write 2/16 in its simplest form. =
  19. 19.Write 49/70 in its simplest form. =
  20. 20.Write 56/63 in its simplest form. =
  21. 21.Write 30/54 in its simplest form. =
  22. 22.Is 3/4 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 10 and 45?
  24. 24.Is 7/9 in its simplest form? (a) No (b) Yes
  25. 25.Is 32/36 in its simplest form? (a) Yes (b) No
  26. 26.Is 4/8 in its simplest form? (a) Yes (b) No
  27. 27.Is 10/18 in its simplest form? (a) Yes (b) No
  28. 28.What is the HCF of 9 and 27?
  29. 29.Write 9/24 in its simplest form. =
  30. 30.Write 45/63 in its simplest form. =
  31. 31.Is 12/16 in its simplest form? (a) Yes (b) No
  32. 32.Is 4/5 in its simplest form? (a) No (b) Yes
  33. 33.Is 6/16 in its simplest form? (a) No (b) Yes
  34. 34.Is 7/8 in its simplest form? (a) Yes (b) No
  35. 35.Write 7/42 in its simplest form. =
  36. 36.What is the HCF of 8 and 32?
  37. 37.Write 3/30 in its simplest form. =
  38. 38.What is the HCF of 40 and 72?
  39. 39.What is the HCF of 7 and 14?
  40. 40.Write 63/72 in its simplest form. =

Answer key

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

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