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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 137 · 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 18 and 45?
  2. 2.Write 4/24 in its simplest form. =
  3. 3.What is the HCF of 6 and 8?
  4. 4.What is the HCF of 35 and 49?
  5. 5.What is the HCF of 32 and 36?
  6. 6.Is 4/7 in its simplest form? (a) No (b) Yes
  7. 7.What is the HCF of 12 and 15?
  8. 8.Write 10/45 in its simplest form. =
  9. 9.Is 1/3 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 4 and 16?
  11. 11.Write 6/16 in its simplest form. =
  12. 12.What is the HCF of 12 and 42?
  13. 13.Is 10/16 in its simplest form? (a) Yes (b) No
  14. 14.Write 21/28 in its simplest form. =
  15. 15.What is the HCF of 6 and 14?
  16. 16.Write 54/63 in its simplest form. =
  17. 17.Write 6/20 in its simplest form. =
  18. 18.Is 7/8 in its simplest form? (a) No (b) Yes
  19. 19.Write 24/27 in its simplest form. =
  20. 20.What is the HCF of 18 and 24?
  21. 21.Is 2/9 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 8 and 40?
  23. 23.Write 18/21 in its simplest form. =
  24. 24.Is 3/8 in its simplest form? (a) Yes (b) No
  25. 25.Is 5/25 in its simplest form? (a) Yes (b) No
  26. 26.Write 49/70 in its simplest form. =
  27. 27.Write 4/20 in its simplest form. =
  28. 28.What is the HCF of 6 and 60?
  29. 29.Write 35/40 in its simplest form. =
  30. 30.Is 2/3 in its simplest form? (a) No (b) Yes
  31. 31.Write 12/32 in its simplest form. =
  32. 32.Is 35/40 in its simplest form? (a) No (b) Yes
  33. 33.Write 27/45 in its simplest form. =
  34. 34.Is 28/36 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 10 and 35?
  36. 36.What is the HCF of 4 and 14?
  37. 37.Is 3/5 in its simplest form? (a) No (b) Yes
  38. 38.Write 21/30 in its simplest form. =
  39. 39.Is 12/28 in its simplest form? (a) No (b) Yes
  40. 40.Is 3/4 in its simplest form? (a) No (b) Yes

Answer key

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

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