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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 416 · 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 6 and 48?
  2. 2.Write 9/81 in its simplest form. =
  3. 3.Write 48/56 in its simplest form. =
  4. 4.Is 25/35 in its simplest form? (a) Yes (b) No
  5. 5.Is 4/7 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 18 and 20?
  7. 7.What is the HCF of 9 and 30?
  8. 8.Write 9/45 in its simplest form. =
  9. 9.What is the HCF of 2 and 10?
  10. 10.Is 8/9 in its simplest form? (a) No (b) Yes
  11. 11.What is the HCF of 6 and 42?
  12. 12.Write 21/24 in its simplest form. =
  13. 13.Write 3/21 in its simplest form. =
  14. 14.Write 21/30 in its simplest form. =
  15. 15.Is 1/8 in its simplest form? (a) No (b) Yes
  16. 16.Write 6/27 in its simplest form. =
  17. 17.What is the HCF of 21 and 28?
  18. 18.Is 3/4 in its simplest form? (a) Yes (b) No
  19. 19.Write 8/28 in its simplest form. =
  20. 20.Is 1/9 in its simplest form? (a) No (b) Yes
  21. 21.Write 30/48 in its simplest form. =
  22. 22.Write 5/45 in its simplest form. =
  23. 23.Is 5/7 in its simplest form? (a) No (b) Yes
  24. 24.What is the HCF of 32 and 40?
  25. 25.Is 1/3 in its simplest form? (a) Yes (b) No
  26. 26.Write 4/32 in its simplest form. =
  27. 27.Write 8/20 in its simplest form. =
  28. 28.What is the HCF of 49 and 70?
  29. 29.Write 3/12 in its simplest form. =
  30. 30.What is the HCF of 2 and 4?
  31. 31.What is the HCF of 9 and 24?
  32. 32.Write 4/24 in its simplest form. =
  33. 33.What is the HCF of 9 and 72?
  34. 34.Write 10/14 in its simplest form. =
  35. 35.Write 5/25 in its simplest form. =
  36. 36.What is the HCF of 16 and 36?
  37. 37.What is the HCF of 6 and 18?
  38. 38.Write 48/54 in its simplest form. =
  39. 39.What is the HCF of 45 and 81?
  40. 40.Write 21/27 in its simplest form. =

Answer key

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

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