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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 257 · 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 10 and 16?
  2. 2.Write 36/45 in its simplest form. =
  3. 3.Write 16/18 in its simplest form. =
  4. 4.What is the HCF of 7 and 28?
  5. 5.What is the HCF of 6 and 15?
  6. 6.Is 16/28 in its simplest form? (a) No (b) Yes
  7. 7.Is 12/32 in its simplest form? (a) No (b) Yes
  8. 8.Write 32/72 in its simplest form. =
  9. 9.Write 20/35 in its simplest form. =
  10. 10.What is the HCF of 8 and 48?
  11. 11.What is the HCF of 6 and 10?
  12. 12.Write 12/54 in its simplest form. =
  13. 13.Write 9/18 in its simplest form. =
  14. 14.Is 3/10 in its simplest form? (a) Yes (b) No
  15. 15.Is 14/20 in its simplest form? (a) No (b) Yes
  16. 16.Write 42/54 in its simplest form. =
  17. 17.Write 45/50 in its simplest form. =
  18. 18.What is the HCF of 5 and 30?
  19. 19.Is 7/10 in its simplest form? (a) No (b) Yes
  20. 20.Write 2/12 in its simplest form. =
  21. 21.What is the HCF of 3 and 27?
  22. 22.Is 2/3 in its simplest form? (a) Yes (b) No
  23. 23.What is the HCF of 21 and 28?
  24. 24.Is 30/42 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 24 and 54?
  26. 26.Write 48/56 in its simplest form. =
  27. 27.Write 12/32 in its simplest form. =
  28. 28.What is the HCF of 42 and 48?
  29. 29.What is the HCF of 56 and 63?
  30. 30.Write 35/50 in its simplest form. =
  31. 31.Write 45/54 in its simplest form. =
  32. 32.What is the HCF of 8 and 40?
  33. 33.What is the HCF of 6 and 8?
  34. 34.Write 9/72 in its simplest form. =
  35. 35.What is the HCF of 2 and 12?
  36. 36.Is 6/15 in its simplest form? (a) Yes (b) No
  37. 37.Write 3/30 in its simplest form. =
  38. 38.What is the HCF of 42 and 60?
  39. 39.Write 7/14 in its simplest form. =
  40. 40.Is 18/42 in its simplest form? (a) No (b) Yes

Answer key

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

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