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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 775 · 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 18 and 60?
  2. 2.Write 3/9 in its simplest form. =
  3. 3.Is 6/20 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 9 and 24?
  5. 5.Write 21/30 in its simplest form. =
  6. 6.Is 1/5 in its simplest form? (a) Yes (b) No
  7. 7.Is 4/20 in its simplest form? (a) Yes (b) No
  8. 8.Is 1/3 in its simplest form? (a) Yes (b) No
  9. 9.Write 8/56 in its simplest form. =
  10. 10.What is the HCF of 36 and 45?
  11. 11.Is 45/50 in its simplest form? (a) No (b) Yes
  12. 12.Write 6/30 in its simplest form. =
  13. 13.Write 4/10 in its simplest form. =
  14. 14.What is the HCF of 8 and 40?
  15. 15.Write 10/14 in its simplest form. =
  16. 16.Write 40/64 in its simplest form. =
  17. 17.Is 15/35 in its simplest form? (a) No (b) Yes
  18. 18.Write 16/72 in its simplest form. =
  19. 19.Is 15/27 in its simplest form? (a) No (b) Yes
  20. 20.Is 3/4 in its simplest form? (a) Yes (b) No
  21. 21.Is 4/12 in its simplest form? (a) No (b) Yes
  22. 22.Is 3/10 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 8 and 36?
  24. 24.Write 9/63 in its simplest form. =
  25. 25.Write 12/54 in its simplest form. =
  26. 26.Write 14/63 in its simplest form. =
  27. 27.What is the HCF of 4 and 10?
  28. 28.Is 2/5 in its simplest form? (a) No (b) Yes
  29. 29.What is the HCF of 8 and 20?
  30. 30.What is the HCF of 10 and 12?
  31. 31.What is the HCF of 5 and 10?
  32. 32.Write 4/28 in its simplest form. =
  33. 33.What is the HCF of 27 and 36?
  34. 34.Write 42/49 in its simplest form. =
  35. 35.Write 6/18 in its simplest form. =
  36. 36.What is the HCF of 24 and 80?
  37. 37.Write 12/27 in its simplest form. =
  38. 38.Is 25/40 in its simplest form? (a) Yes (b) No
  39. 39.Write 6/36 in its simplest form. =
  40. 40.What is the HCF of 45 and 50?

Answer key

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

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