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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 888 · 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 3/30 in its simplest form. =
  2. 2.What is the HCF of 72 and 80?
  3. 3.Write 6/9 in its simplest form. =
  4. 4.What is the HCF of 4 and 16?
  5. 5.What is the HCF of 3 and 12?
  6. 6.Write 32/56 in its simplest form. =
  7. 7.What is the HCF of 2 and 8?
  8. 8.What is the HCF of 2 and 10?
  9. 9.What is the HCF of 14 and 20?
  10. 10.Is 4/5 in its simplest form? (a) Yes (b) No
  11. 11.Write 3/6 in its simplest form. =
  12. 12.Is 4/40 in its simplest form? (a) Yes (b) No
  13. 13.Write 15/18 in its simplest form. =
  14. 14.Is 36/42 in its simplest form? (a) Yes (b) No
  15. 15.Write 12/14 in its simplest form. =
  16. 16.Write 8/64 in its simplest form. =
  17. 17.What is the HCF of 9 and 45?
  18. 18.Write 2/8 in its simplest form. =
  19. 19.What is the HCF of 9 and 21?
  20. 20.What is the HCF of 16 and 18?
  21. 21.Is 3/4 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 3 and 30?
  23. 23.Is 4/20 in its simplest form? (a) No (b) Yes
  24. 24.What is the HCF of 21 and 35?
  25. 25.Is 5/9 in its simplest form? (a) Yes (b) No
  26. 26.Write 27/45 in its simplest form. =
  27. 27.What is the HCF of 7 and 35?
  28. 28.Write 36/40 in its simplest form. =
  29. 29.Is 4/12 in its simplest form? (a) No (b) Yes
  30. 30.Is 1/2 in its simplest form? (a) No (b) Yes
  31. 31.Write 28/49 in its simplest form. =
  32. 32.Is 6/18 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 9 and 27?
  34. 34.Write 24/54 in its simplest form. =
  35. 35.Write 18/24 in its simplest form. =
  36. 36.Is 6/10 in its simplest form? (a) Yes (b) No
  37. 37.Write 15/35 in its simplest form. =
  38. 38.Write 56/64 in its simplest form. =
  39. 39.Is 6/27 in its simplest form? (a) Yes (b) No
  40. 40.What is the HCF of 32 and 40?

Answer key

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

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