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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 978 · 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.Is 35/40 in its simplest form? (a) Yes (b) No
  2. 2.What is the HCF of 18 and 48?
  3. 3.Write 24/56 in its simplest form. =
  4. 4.Is 2/14 in its simplest form? (a) Yes (b) No
  5. 5.Is 12/40 in its simplest form? (a) No (b) Yes
  6. 6.Write 21/49 in its simplest form. =
  7. 7.Is 1/3 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 9 and 45?
  9. 9.What is the HCF of 15 and 21?
  10. 10.Write 2/18 in its simplest form. =
  11. 11.What is the HCF of 12 and 54?
  12. 12.What is the HCF of 9 and 12?
  13. 13.Write 36/81 in its simplest form. =
  14. 14.What is the HCF of 10 and 15?
  15. 15.Is 30/36 in its simplest form? (a) Yes (b) No
  16. 16.Is 1/4 in its simplest form? (a) Yes (b) No
  17. 17.Is 5/25 in its simplest form? (a) No (b) Yes
  18. 18.Write 18/24 in its simplest form. =
  19. 19.Write 28/35 in its simplest form. =
  20. 20.Is 18/60 in its simplest form? (a) Yes (b) No
  21. 21.Is 12/15 in its simplest form? (a) No (b) Yes
  22. 22.Write 8/16 in its simplest form. =
  23. 23.What is the HCF of 2 and 16?
  24. 24.Is 4/5 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 6 and 14?
  26. 26.Write 25/35 in its simplest form. =
  27. 27.Write 2/6 in its simplest form. =
  28. 28.Is 3/15 in its simplest form? (a) No (b) Yes
  29. 29.Write 20/25 in its simplest form. =
  30. 30.Write 8/64 in its simplest form. =
  31. 31.Write 20/45 in its simplest form. =
  32. 32.Write 56/63 in its simplest form. =
  33. 33.What is the HCF of 7 and 56?
  34. 34.Write 30/35 in its simplest form. =
  35. 35.What is the HCF of 8 and 40?
  36. 36.Write 4/20 in its simplest form. =
  37. 37.What is the HCF of 18 and 30?
  38. 38.What is the HCF of 10 and 35?
  39. 39.Is 7/10 in its simplest form? (a) Yes (b) No
  40. 40.Is 6/24 in its simplest form? (a) No (b) Yes

Answer key

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

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