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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 609 · 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 9/63 in its simplest form. =
  2. 2.What is the HCF of 5 and 35?
  3. 3.Write 56/63 in its simplest form. =
  4. 4.Write 18/20 in its simplest form. =
  5. 5.What is the HCF of 15 and 24?
  6. 6.What is the HCF of 18 and 45?
  7. 7.What is the HCF of 8 and 48?
  8. 8.What is the HCF of 12 and 14?
  9. 9.Write 3/12 in its simplest form. =
  10. 10.What is the HCF of 6 and 9?
  11. 11.Write 8/32 in its simplest form. =
  12. 12.Write 32/72 in its simplest form. =
  13. 13.Is 48/54 in its simplest form? (a) No (b) Yes
  14. 14.Write 14/35 in its simplest form. =
  15. 15.Write 8/36 in its simplest form. =
  16. 16.Write 15/21 in its simplest form. =
  17. 17.Write 6/24 in its simplest form. =
  18. 18.What is the HCF of 6 and 12?
  19. 19.Write 27/45 in its simplest form. =
  20. 20.Is 5/7 in its simplest form? (a) Yes (b) No
  21. 21.Write 3/21 in its simplest form. =
  22. 22.Is 7/9 in its simplest form? (a) Yes (b) No
  23. 23.Is 3/4 in its simplest form? (a) Yes (b) No
  24. 24.Write 27/90 in its simplest form. =
  25. 25.What is the HCF of 25 and 45?
  26. 26.Is 15/35 in its simplest form? (a) Yes (b) No
  27. 27.What is the HCF of 40 and 64?
  28. 28.Is 2/3 in its simplest form? (a) No (b) Yes
  29. 29.What is the HCF of 32 and 72?
  30. 30.Write 45/63 in its simplest form. =
  31. 31.What is the HCF of 6 and 20?
  32. 32.What is the HCF of 12 and 54?
  33. 33.What is the HCF of 6 and 36?
  34. 34.Is 3/5 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 8 and 20?
  36. 36.Is 7/10 in its simplest form? (a) No (b) Yes
  37. 37.What is the HCF of 2 and 18?
  38. 38.Is 4/18 in its simplest form? (a) Yes (b) No
  39. 39.Write 2/18 in its simplest form. =
  40. 40.Is 30/36 in its simplest form? (a) Yes (b) No

Answer key

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

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