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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 401 · 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 8 and 10?
  2. 2.What is the HCF of 6 and 15?
  3. 3.What is the HCF of 56 and 64?
  4. 4.Write 8/18 in its simplest form. =
  5. 5.Is 7/9 in its simplest form? (a) No (b) Yes
  6. 6.Is 30/48 in its simplest form? (a) Yes (b) No
  7. 7.Write 63/70 in its simplest form. =
  8. 8.What is the HCF of 30 and 48?
  9. 9.Is 9/12 in its simplest form? (a) Yes (b) No
  10. 10.Write 35/56 in its simplest form. =
  11. 11.Is 3/4 in its simplest form? (a) No (b) Yes
  12. 12.Write 21/28 in its simplest form. =
  13. 13.What is the HCF of 27 and 30?
  14. 14.Write 18/63 in its simplest form. =
  15. 15.Write 81/90 in its simplest form. =
  16. 16.Is 2/9 in its simplest form? (a) No (b) Yes
  17. 17.What is the HCF of 18 and 63?
  18. 18.What is the HCF of 24 and 42?
  19. 19.Write 21/30 in its simplest form. =
  20. 20.What is the HCF of 42 and 60?
  21. 21.Write 9/18 in its simplest form. =
  22. 22.Is 4/24 in its simplest form? (a) Yes (b) No
  23. 23.Write 56/72 in its simplest form. =
  24. 24.Write 3/27 in its simplest form. =
  25. 25.What is the HCF of 40 and 48?
  26. 26.What is the HCF of 12 and 21?
  27. 27.What is the HCF of 7 and 14?
  28. 28.Is 1/5 in its simplest form? (a) No (b) Yes
  29. 29.Write 21/70 in its simplest form. =
  30. 30.Write 6/20 in its simplest form. =
  31. 31.Is 3/5 in its simplest form? (a) Yes (b) No
  32. 32.Write 9/27 in its simplest form. =
  33. 33.What is the HCF of 2 and 6?
  34. 34.Write 8/12 in its simplest form. =
  35. 35.What is the HCF of 45 and 63?
  36. 36.Write 15/25 in its simplest form. =
  37. 37.Write 45/50 in its simplest form. =
  38. 38.Write 32/56 in its simplest form. =
  39. 39.Write 20/32 in its simplest form. =
  40. 40.Is 45/50 in its simplest form? (a) Yes (b) No

Answer key

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

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