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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 74 · 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 25/30 in its simplest form? (a) Yes (b) No
  2. 2.What is the HCF of 40 and 56?
  3. 3.Is 4/10 in its simplest form? (a) Yes (b) No
  4. 4.What is the HCF of 5 and 10?
  5. 5.Write 6/20 in its simplest form. =
  6. 6.What is the HCF of 9 and 54?
  7. 7.Write 32/36 in its simplest form. =
  8. 8.Write 27/30 in its simplest form. =
  9. 9.What is the HCF of 27 and 30?
  10. 10.What is the HCF of 6 and 12?
  11. 11.Write 28/63 in its simplest form. =
  12. 12.Is 3/7 in its simplest form? (a) Yes (b) No
  13. 13.Is 1/9 in its simplest form? (a) Yes (b) No
  14. 14.Write 45/54 in its simplest form. =
  15. 15.Is 3/9 in its simplest form? (a) Yes (b) No
  16. 16.Write 30/48 in its simplest form. =
  17. 17.Write 27/90 in its simplest form. =
  18. 18.Is 15/24 in its simplest form? (a) Yes (b) No
  19. 19.Is 35/45 in its simplest form? (a) Yes (b) No
  20. 20.Write 4/28 in its simplest form. =
  21. 21.What is the HCF of 10 and 14?
  22. 22.Write 9/21 in its simplest form. =
  23. 23.What is the HCF of 8 and 48?
  24. 24.What is the HCF of 54 and 60?
  25. 25.Write 8/14 in its simplest form. =
  26. 26.Write 15/35 in its simplest form. =
  27. 27.Is 42/60 in its simplest form? (a) Yes (b) No
  28. 28.Is 4/7 in its simplest form? (a) No (b) Yes
  29. 29.What is the HCF of 6 and 15?
  30. 30.Is 5/8 in its simplest form? (a) Yes (b) No
  31. 31.Write 15/24 in its simplest form. =
  32. 32.Write 63/70 in its simplest form. =
  33. 33.What is the HCF of 36 and 63?
  34. 34.Is 5/7 in its simplest form? (a) Yes (b) No
  35. 35.Is 12/40 in its simplest form? (a) Yes (b) No
  36. 36.Write 3/21 in its simplest form. =
  37. 37.What is the HCF of 4 and 12?
  38. 38.Is 9/10 in its simplest form? (a) Yes (b) No
  39. 39.Is 10/25 in its simplest form? (a) Yes (b) No
  40. 40.Is 15/50 in its simplest form? (a) Yes (b) No

Answer key

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

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