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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 447 · 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.Is 5/45 in its simplest form? (a) Yes (b) No
  2. 2.Write 24/42 in its simplest form. =
  3. 3.Is 1/10 in its simplest form? (a) No (b) Yes
  4. 4.Is 2/5 in its simplest form? (a) No (b) Yes
  5. 5.What is the HCF of 3 and 27?
  6. 6.Is 25/45 in its simplest form? (a) Yes (b) No
  7. 7.Is 1/3 in its simplest form? (a) Yes (b) No
  8. 8.Write 14/35 in its simplest form. =
  9. 9.Write 8/12 in its simplest form. =
  10. 10.Is 12/42 in its simplest form? (a) Yes (b) No
  11. 11.Write 56/63 in its simplest form. =
  12. 12.Is 4/5 in its simplest form? (a) Yes (b) No
  13. 13.Write 45/81 in its simplest form. =
  14. 14.What is the HCF of 5 and 35?
  15. 15.What is the HCF of 9 and 15?
  16. 16.Is 24/42 in its simplest form? (a) Yes (b) No
  17. 17.Is 20/24 in its simplest form? (a) No (b) Yes
  18. 18.Write 4/32 in its simplest form. =
  19. 19.What is the HCF of 35 and 63?
  20. 20.What is the HCF of 35 and 50?
  21. 21.Write 14/16 in its simplest form. =
  22. 22.Write 49/63 in its simplest form. =
  23. 23.Write 28/35 in its simplest form. =
  24. 24.Write 45/50 in its simplest form. =
  25. 25.What is the HCF of 8 and 80?
  26. 26.Write 6/12 in its simplest form. =
  27. 27.Is 12/16 in its simplest form? (a) No (b) Yes
  28. 28.Is 3/5 in its simplest form? (a) Yes (b) No
  29. 29.Write 9/54 in its simplest form. =
  30. 30.Write 6/42 in its simplest form. =
  31. 31.Write 3/30 in its simplest form. =
  32. 32.What is the HCF of 24 and 54?
  33. 33.Is 8/9 in its simplest form? (a) Yes (b) No
  34. 34.Write 45/72 in its simplest form. =
  35. 35.What is the HCF of 30 and 42?
  36. 36.Is 8/18 in its simplest form? (a) Yes (b) No
  37. 37.Write 8/20 in its simplest form. =
  38. 38.Is 2/10 in its simplest form? (a) Yes (b) No
  39. 39.Write 4/6 in its simplest form. =
  40. 40.Is 4/8 in its simplest form? (a) Yes (b) No

Answer key

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

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