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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 190 · 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 8/40 in its simplest form. =
  2. 2.What is the HCF of 24 and 42?
  3. 3.Write 4/28 in its simplest form. =
  4. 4.Write 6/54 in its simplest form. =
  5. 5.Is 3/7 in its simplest form? (a) Yes (b) No
  6. 6.Write 9/12 in its simplest form. =
  7. 7.Is 3/30 in its simplest form? (a) No (b) Yes
  8. 8.Is 15/20 in its simplest form? (a) Yes (b) No
  9. 9.Write 4/16 in its simplest form. =
  10. 10.Is 15/24 in its simplest form? (a) Yes (b) No
  11. 11.Is 1/4 in its simplest form? (a) Yes (b) No
  12. 12.What is the HCF of 42 and 54?
  13. 13.Write 42/49 in its simplest form. =
  14. 14.What is the HCF of 18 and 48?
  15. 15.Write 40/64 in its simplest form. =
  16. 16.What is the HCF of 15 and 18?
  17. 17.Write 25/45 in its simplest form. =
  18. 18.What is the HCF of 15 and 50?
  19. 19.Write 5/45 in its simplest form. =
  20. 20.What is the HCF of 32 and 72?
  21. 21.Write 15/24 in its simplest form. =
  22. 22.What is the HCF of 18 and 27?
  23. 23.Is 32/36 in its simplest form? (a) No (b) Yes
  24. 24.What is the HCF of 2 and 16?
  25. 25.Is 2/9 in its simplest form? (a) Yes (b) No
  26. 26.What is the HCF of 8 and 56?
  27. 27.What is the HCF of 24 and 40?
  28. 28.Write 21/27 in its simplest form. =
  29. 29.Write 63/72 in its simplest form. =
  30. 30.What is the HCF of 24 and 27?
  31. 31.Is 8/28 in its simplest form? (a) No (b) Yes
  32. 32.Is 1/8 in its simplest form? (a) Yes (b) No
  33. 33.Is 2/7 in its simplest form? (a) Yes (b) No
  34. 34.What is the HCF of 5 and 20?
  35. 35.What is the HCF of 45 and 54?
  36. 36.What is the HCF of 2 and 8?
  37. 37.Is 35/50 in its simplest form? (a) No (b) Yes
  38. 38.Write 14/20 in its simplest form. =
  39. 39.Is 4/7 in its simplest form? (a) Yes (b) No
  40. 40.What is the HCF of 8 and 32?

Answer key

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

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