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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 319 · 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 42?
  2. 2.What is the HCF of 15 and 25?
  3. 3.Is 12/18 in its simplest form? (a) Yes (b) No
  4. 4.Is 3/7 in its simplest form? (a) Yes (b) No
  5. 5.Write 48/56 in its simplest form. =
  6. 6.Write 4/20 in its simplest form. =
  7. 7.Write 21/49 in its simplest form. =
  8. 8.Write 8/36 in its simplest form. =
  9. 9.What is the HCF of 2 and 20?
  10. 10.Is 9/10 in its simplest form? (a) No (b) Yes
  11. 11.Write 32/40 in its simplest form. =
  12. 12.Write 9/36 in its simplest form. =
  13. 13.What is the HCF of 64 and 72?
  14. 14.What is the HCF of 3 and 24?
  15. 15.What is the HCF of 4 and 12?
  16. 16.What is the HCF of 21 and 30?
  17. 17.What is the HCF of 2 and 6?
  18. 18.Write 6/8 in its simplest form. =
  19. 19.What is the HCF of 2 and 18?
  20. 20.What is the HCF of 6 and 15?
  21. 21.What is the HCF of 6 and 48?
  22. 22.What is the HCF of 24 and 40?
  23. 23.Write 21/30 in its simplest form. =
  24. 24.Is 2/7 in its simplest form? (a) Yes (b) No
  25. 25.Is 8/9 in its simplest form? (a) Yes (b) No
  26. 26.Write 4/12 in its simplest form. =
  27. 27.Write 35/40 in its simplest form. =
  28. 28.Is 2/6 in its simplest form? (a) No (b) Yes
  29. 29.Is 16/20 in its simplest form? (a) Yes (b) No
  30. 30.Is 1/9 in its simplest form? (a) No (b) Yes
  31. 31.Is 1/8 in its simplest form? (a) No (b) Yes
  32. 32.Is 3/8 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 3 and 27?
  34. 34.Is 2/9 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 25 and 30?
  36. 36.Write 20/32 in its simplest form. =
  37. 37.Write 25/45 in its simplest form. =
  38. 38.Write 28/36 in its simplest form. =
  39. 39.What is the HCF of 20 and 36?
  40. 40.Write 6/54 in its simplest form. =

Answer key

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

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