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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 484 · 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 21/35 in its simplest form. =
  2. 2.What is the HCF of 12 and 27?
  3. 3.Is 7/10 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 20 and 36?
  5. 5.What is the HCF of 5 and 15?
  6. 6.Write 10/25 in its simplest form. =
  7. 7.What is the HCF of 21 and 28?
  8. 8.What is the HCF of 42 and 48?
  9. 9.Is 2/3 in its simplest form? (a) No (b) Yes
  10. 10.Is 1/3 in its simplest form? (a) Yes (b) No
  11. 11.Is 6/21 in its simplest form? (a) Yes (b) No
  12. 12.What is the HCF of 9 and 90?
  13. 13.Write 28/40 in its simplest form. =
  14. 14.Write 6/9 in its simplest form. =
  15. 15.What is the HCF of 2 and 12?
  16. 16.What is the HCF of 8 and 80?
  17. 17.What is the HCF of 6 and 24?
  18. 18.Write 81/90 in its simplest form. =
  19. 19.Write 40/48 in its simplest form. =
  20. 20.What is the HCF of 42 and 54?
  21. 21.Write 20/35 in its simplest form. =
  22. 22.Write 24/40 in its simplest form. =
  23. 23.Is 2/5 in its simplest form? (a) No (b) Yes
  24. 24.Write 27/30 in its simplest form. =
  25. 25.Write 14/63 in its simplest form. =
  26. 26.What is the HCF of 2 and 8?
  27. 27.Is 45/50 in its simplest form? (a) Yes (b) No
  28. 28.Write 4/14 in its simplest form. =
  29. 29.Is 3/7 in its simplest form? (a) No (b) Yes
  30. 30.Write 21/56 in its simplest form. =
  31. 31.Write 24/30 in its simplest form. =
  32. 32.Write 8/12 in its simplest form. =
  33. 33.What is the HCF of 8 and 10?
  34. 34.Write 24/80 in its simplest form. =
  35. 35.Write 5/10 in its simplest form. =
  36. 36.What is the HCF of 8 and 24?
  37. 37.Write 5/45 in its simplest form. =
  38. 38.Write 14/35 in its simplest form. =
  39. 39.Is 1/8 in its simplest form? (a) Yes (b) No
  40. 40.Write 4/8 in its simplest form. =

Answer key

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

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