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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 476 · 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 56/72 in its simplest form. =
  2. 2.Is 20/28 in its simplest form? (a) Yes (b) No
  3. 3.Write 9/30 in its simplest form. =
  4. 4.Write 2/10 in its simplest form. =
  5. 5.Write 5/15 in its simplest form. =
  6. 6.Write 35/49 in its simplest form. =
  7. 7.Is 1/9 in its simplest form? (a) Yes (b) No
  8. 8.Is 3/5 in its simplest form? (a) No (b) Yes
  9. 9.Write 15/50 in its simplest form. =
  10. 10.What is the HCF of 24 and 42?
  11. 11.What is the HCF of 6 and 42?
  12. 12.What is the HCF of 6 and 60?
  13. 13.Is 25/30 in its simplest form? (a) Yes (b) No
  14. 14.What is the HCF of 8 and 18?
  15. 15.What is the HCF of 21 and 24?
  16. 16.Is 6/36 in its simplest form? (a) No (b) Yes
  17. 17.Write 9/18 in its simplest form. =
  18. 18.Write 10/12 in its simplest form. =
  19. 19.What is the HCF of 8 and 24?
  20. 20.Write 14/20 in its simplest form. =
  21. 21.Is 2/7 in its simplest form? (a) Yes (b) No
  22. 22.What is the HCF of 32 and 56?
  23. 23.Write 24/64 in its simplest form. =
  24. 24.Is 3/4 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 14 and 18?
  26. 26.What is the HCF of 30 and 48?
  27. 27.Is 5/9 in its simplest form? (a) Yes (b) No
  28. 28.Write 16/36 in its simplest form. =
  29. 29.Write 2/16 in its simplest form. =
  30. 30.What is the HCF of 8 and 80?
  31. 31.Is 7/9 in its simplest form? (a) Yes (b) No
  32. 32.Write 81/90 in its simplest form. =
  33. 33.What is the HCF of 7 and 28?
  34. 34.Is 1/2 in its simplest form? (a) No (b) Yes
  35. 35.Write 3/27 in its simplest form. =
  36. 36.Is 16/28 in its simplest form? (a) Yes (b) No
  37. 37.Is 6/15 in its simplest form? (a) No (b) Yes
  38. 38.Write 5/40 in its simplest form. =
  39. 39.Write 18/21 in its simplest form. =
  40. 40.Write 21/70 in its simplest form. =

Answer key

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

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