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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 513 · 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 1/5 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 16 and 20?
  3. 3.What is the HCF of 6 and 60?
  4. 4.Write 9/30 in its simplest form. =
  5. 5.Write 3/9 in its simplest form. =
  6. 6.What is the HCF of 35 and 63?
  7. 7.Write 4/10 in its simplest form. =
  8. 8.Write 6/48 in its simplest form. =
  9. 9.Is 3/10 in its simplest form? (a) No (b) Yes
  10. 10.Write 8/72 in its simplest form. =
  11. 11.What is the HCF of 35 and 50?
  12. 12.What is the HCF of 14 and 35?
  13. 13.What is the HCF of 5 and 25?
  14. 14.Is 1/2 in its simplest form? (a) Yes (b) No
  15. 15.Is 3/8 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 9 and 24?
  17. 17.Is 1/3 in its simplest form? (a) Yes (b) No
  18. 18.What is the HCF of 5 and 30?
  19. 19.Write 15/21 in its simplest form. =
  20. 20.What is the HCF of 8 and 64?
  21. 21.What is the HCF of 4 and 10?
  22. 22.What is the HCF of 9 and 36?
  23. 23.Write 14/20 in its simplest form. =
  24. 24.Is 1/8 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 12 and 54?
  26. 26.Is 4/9 in its simplest form? (a) Yes (b) No
  27. 27.Write 25/30 in its simplest form. =
  28. 28.Is 8/9 in its simplest form? (a) No (b) Yes
  29. 29.Write 4/24 in its simplest form. =
  30. 30.What is the HCF of 15 and 35?
  31. 31.What is the HCF of 28 and 49?
  32. 32.Is 9/10 in its simplest form? (a) No (b) Yes
  33. 33.Write 48/56 in its simplest form. =
  34. 34.Is 4/7 in its simplest form? (a) Yes (b) No
  35. 35.Write 49/63 in its simplest form. =
  36. 36.What is the HCF of 36 and 81?
  37. 37.Write 24/32 in its simplest form. =
  38. 38.Write 16/18 in its simplest form. =
  39. 39.Write 27/45 in its simplest form. =
  40. 40.Write 9/81 in its simplest form. =

Answer key

  1. Yes
  2. 4
  3. 6
  4. 3/10
  5. 1/3
  6. 7
  7. 2/5
  8. 1/8
  9. Yes
  10. 1/9
  11. 5
  12. 7
  13. 5
  14. Yes
  15. Yes
  16. 3
  17. Yes
  18. 5
  19. 5/7
  20. 8
  21. 2
  22. 9
  23. 7/10
  24. Yes
  25. 6
  26. Yes
  27. 5/6
  28. Yes
  29. 1/6
  30. 5
  31. 7
  32. Yes
  33. 6/7
  34. Yes
  35. 7/9
  36. 9
  37. 3/4
  38. 8/9
  39. 3/5
  40. 1/9

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