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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 95 · 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 28 and 40?
  2. 2.Write 20/35 in its simplest form. =
  3. 3.What is the HCF of 6 and 16?
  4. 4.Write 9/54 in its simplest form. =
  5. 5.Write 45/63 in its simplest form. =
  6. 6.Write 16/20 in its simplest form. =
  7. 7.Write 18/81 in its simplest form. =
  8. 8.Is 1/9 in its simplest form? (a) No (b) Yes
  9. 9.Is 4/9 in its simplest form? (a) No (b) Yes
  10. 10.Is 3/5 in its simplest form? (a) Yes (b) No
  11. 11.Write 8/10 in its simplest form. =
  12. 12.Write 2/10 in its simplest form. =
  13. 13.What is the HCF of 3 and 21?
  14. 14.Write 36/81 in its simplest form. =
  15. 15.Write 3/9 in its simplest form. =
  16. 16.What is the HCF of 3 and 24?
  17. 17.Is 1/3 in its simplest form? (a) No (b) Yes
  18. 18.Write 7/21 in its simplest form. =
  19. 19.What is the HCF of 24 and 40?
  20. 20.Write 16/40 in its simplest form. =
  21. 21.What is the HCF of 28 and 63?
  22. 22.Is 7/8 in its simplest form? (a) No (b) Yes
  23. 23.Is 2/10 in its simplest form? (a) Yes (b) No
  24. 24.What is the HCF of 24 and 27?
  25. 25.What is the HCF of 7 and 70?
  26. 26.Is 6/9 in its simplest form? (a) Yes (b) No
  27. 27.Is 12/40 in its simplest form? (a) Yes (b) No
  28. 28.What is the HCF of 20 and 35?
  29. 29.What is the HCF of 27 and 30?
  30. 30.Write 14/21 in its simplest form. =
  31. 31.What is the HCF of 14 and 63?
  32. 32.Write 12/54 in its simplest form. =
  33. 33.Write 5/50 in its simplest form. =
  34. 34.What is the HCF of 21 and 24?
  35. 35.Write 56/80 in its simplest form. =
  36. 36.What is the HCF of 3 and 15?
  37. 37.Is 18/30 in its simplest form? (a) No (b) Yes
  38. 38.Write 6/48 in its simplest form. =
  39. 39.What is the HCF of 3 and 9?
  40. 40.What is the HCF of 14 and 21?

Answer key

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

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