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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 784 · 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 18/20 in its simplest form. =
  2. 2.Is 5/7 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 54 and 63?
  4. 4.Is 5/8 in its simplest form? (a) Yes (b) No
  5. 5.Is 16/28 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 6 and 36?
  7. 7.Is 36/40 in its simplest form? (a) Yes (b) No
  8. 8.What is the HCF of 9 and 21?
  9. 9.Write 21/49 in its simplest form. =
  10. 10.Is 1/7 in its simplest form? (a) No (b) Yes
  11. 11.Is 1/10 in its simplest form? (a) Yes (b) No
  12. 12.Write 7/63 in its simplest form. =
  13. 13.Is 5/9 in its simplest form? (a) No (b) Yes
  14. 14.Is 7/8 in its simplest form? (a) Yes (b) No
  15. 15.Is 7/10 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 5 and 10?
  17. 17.What is the HCF of 6 and 30?
  18. 18.Is 12/20 in its simplest form? (a) No (b) Yes
  19. 19.Is 4/7 in its simplest form? (a) No (b) Yes
  20. 20.Write 8/48 in its simplest form. =
  21. 21.Write 72/80 in its simplest form. =
  22. 22.Write 20/28 in its simplest form. =
  23. 23.What is the HCF of 2 and 10?
  24. 24.Write 7/21 in its simplest form. =
  25. 25.Write 48/54 in its simplest form. =
  26. 26.Write 28/35 in its simplest form. =
  27. 27.What is the HCF of 14 and 63?
  28. 28.Is 4/5 in its simplest form? (a) Yes (b) No
  29. 29.Is 2/3 in its simplest form? (a) No (b) Yes
  30. 30.Write 8/14 in its simplest form. =
  31. 31.What is the HCF of 64 and 72?
  32. 32.Write 63/81 in its simplest form. =
  33. 33.What is the HCF of 35 and 56?
  34. 34.What is the HCF of 8 and 48?
  35. 35.What is the HCF of 12 and 15?
  36. 36.What is the HCF of 6 and 60?
  37. 37.Is 6/14 in its simplest form? (a) Yes (b) No
  38. 38.Write 2/18 in its simplest form. =
  39. 39.Write 18/30 in its simplest form. =
  40. 40.Is 8/10 in its simplest form? (a) Yes (b) No

Answer key

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

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