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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 29 · 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.Write 14/35 in its simplest form. =
  2. 2.Is 2/7 in its simplest form? (a) No (b) Yes
  3. 3.Write 5/50 in its simplest form. =
  4. 4.What is the HCF of 42 and 48?
  5. 5.Write 8/72 in its simplest form. =
  6. 6.Write 40/64 in its simplest form. =
  7. 7.What is the HCF of 27 and 63?
  8. 8.Write 45/81 in its simplest form. =
  9. 9.What is the HCF of 6 and 14?
  10. 10.What is the HCF of 4 and 6?
  11. 11.Write 10/18 in its simplest form. =
  12. 12.What is the HCF of 12 and 16?
  13. 13.Write 24/30 in its simplest form. =
  14. 14.Write 36/81 in its simplest form. =
  15. 15.Is 14/16 in its simplest form? (a) No (b) Yes
  16. 16.Write 27/72 in its simplest form. =
  17. 17.What is the HCF of 6 and 54?
  18. 18.Write 27/30 in its simplest form. =
  19. 19.What is the HCF of 8 and 24?
  20. 20.Write 8/64 in its simplest form. =
  21. 21.Is 18/48 in its simplest form? (a) Yes (b) No
  22. 22.Write 9/36 in its simplest form. =
  23. 23.Write 63/90 in its simplest form. =
  24. 24.Write 6/15 in its simplest form. =
  25. 25.Write 21/56 in its simplest form. =
  26. 26.Write 40/56 in its simplest form. =
  27. 27.What is the HCF of 21 and 35?
  28. 28.Is 4/7 in its simplest form? (a) Yes (b) No
  29. 29.Write 7/49 in its simplest form. =
  30. 30.What is the HCF of 5 and 35?
  31. 31.Write 40/48 in its simplest form. =
  32. 32.Is 16/36 in its simplest form? (a) Yes (b) No
  33. 33.Write 16/28 in its simplest form. =
  34. 34.Is 10/45 in its simplest form? (a) Yes (b) No
  35. 35.Is 2/3 in its simplest form? (a) Yes (b) No
  36. 36.What is the HCF of 45 and 81?
  37. 37.What is the HCF of 56 and 80?
  38. 38.Is 8/20 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 4 and 40?
  40. 40.What is the HCF of 63 and 72?

Answer key

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

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