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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 593 · 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 27 and 45?
  2. 2.Write 2/8 in its simplest form. =
  3. 3.What is the HCF of 24 and 40?
  4. 4.Is 30/42 in its simplest form? (a) No (b) Yes
  5. 5.Write 4/32 in its simplest form. =
  6. 6.What is the HCF of 8 and 48?
  7. 7.Is 1/8 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 72 and 81?
  9. 9.Write 6/21 in its simplest form. =
  10. 10.Is 30/35 in its simplest form? (a) No (b) Yes
  11. 11.What is the HCF of 21 and 56?
  12. 12.What is the HCF of 16 and 36?
  13. 13.Write 14/49 in its simplest form. =
  14. 14.Write 5/30 in its simplest form. =
  15. 15.Is 1/9 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 6 and 18?
  17. 17.Write 2/16 in its simplest form. =
  18. 18.What is the HCF of 12 and 16?
  19. 19.Is 3/12 in its simplest form? (a) No (b) Yes
  20. 20.Write 32/40 in its simplest form. =
  21. 21.Is 6/48 in its simplest form? (a) Yes (b) No
  22. 22.Write 21/27 in its simplest form. =
  23. 23.Write 24/40 in its simplest form. =
  24. 24.Write 15/50 in its simplest form. =
  25. 25.What is the HCF of 32 and 36?
  26. 26.What is the HCF of 9 and 21?
  27. 27.Is 3/4 in its simplest form? (a) Yes (b) No
  28. 28.What is the HCF of 36 and 40?
  29. 29.Write 63/72 in its simplest form. =
  30. 30.What is the HCF of 8 and 12?
  31. 31.What is the HCF of 25 and 35?
  32. 32.Write 6/18 in its simplest form. =
  33. 33.Write 9/27 in its simplest form. =
  34. 34.What is the HCF of 6 and 12?
  35. 35.Write 16/28 in its simplest form. =
  36. 36.Write 16/20 in its simplest form. =
  37. 37.Write 9/63 in its simplest form. =
  38. 38.Write 4/10 in its simplest form. =
  39. 39.Write 7/42 in its simplest form. =
  40. 40.Is 6/9 in its simplest form? (a) Yes (b) No

Answer key

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

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