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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 234 · 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 10 and 14?
  2. 2.Is 30/48 in its simplest form? (a) No (b) Yes
  3. 3.Is 1/2 in its simplest form? (a) No (b) Yes
  4. 4.Is 4/40 in its simplest form? (a) No (b) Yes
  5. 5.Write 24/42 in its simplest form. =
  6. 6.Write 5/15 in its simplest form. =
  7. 7.What is the HCF of 12 and 28?
  8. 8.Is 9/30 in its simplest form? (a) Yes (b) No
  9. 9.Write 4/10 in its simplest form. =
  10. 10.What is the HCF of 28 and 63?
  11. 11.Write 42/48 in its simplest form. =
  12. 12.What is the HCF of 28 and 36?
  13. 13.What is the HCF of 21 and 28?
  14. 14.Is 1/8 in its simplest form? (a) Yes (b) No
  15. 15.Is 6/7 in its simplest form? (a) Yes (b) No
  16. 16.Write 49/63 in its simplest form. =
  17. 17.Write 8/72 in its simplest form. =
  18. 18.Write 6/9 in its simplest form. =
  19. 19.What is the HCF of 35 and 42?
  20. 20.Write 18/63 in its simplest form. =
  21. 21.What is the HCF of 54 and 60?
  22. 22.What is the HCF of 12 and 18?
  23. 23.Write 6/21 in its simplest form. =
  24. 24.What is the HCF of 15 and 50?
  25. 25.What is the HCF of 20 and 36?
  26. 26.Is 3/27 in its simplest form? (a) No (b) Yes
  27. 27.Write 9/30 in its simplest form. =
  28. 28.What is the HCF of 9 and 27?
  29. 29.What is the HCF of 49 and 56?
  30. 30.Write 21/70 in its simplest form. =
  31. 31.What is the HCF of 16 and 36?
  32. 32.What is the HCF of 45 and 63?
  33. 33.Write 28/32 in its simplest form. =
  34. 34.Write 2/8 in its simplest form. =
  35. 35.Write 4/12 in its simplest form. =
  36. 36.What is the HCF of 12 and 15?
  37. 37.Write 30/42 in its simplest form. =
  38. 38.Is 12/54 in its simplest form? (a) No (b) Yes
  39. 39.Is 4/20 in its simplest form? (a) Yes (b) No
  40. 40.Write 9/24 in its simplest form. =

Answer key

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

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