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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 814 · 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 4/40 in its simplest form? (a) Yes (b) No
  2. 2.Write 16/20 in its simplest form. =
  3. 3.Write 24/30 in its simplest form. =
  4. 4.Write 16/56 in its simplest form. =
  5. 5.What is the HCF of 9 and 36?
  6. 6.Is 2/9 in its simplest form? (a) No (b) Yes
  7. 7.What is the HCF of 10 and 45?
  8. 8.What is the HCF of 7 and 35?
  9. 9.Write 35/63 in its simplest form. =
  10. 10.What is the HCF of 10 and 16?
  11. 11.Is 2/3 in its simplest form? (a) No (b) Yes
  12. 12.What is the HCF of 27 and 63?
  13. 13.Write 24/64 in its simplest form. =
  14. 14.Write 20/45 in its simplest form. =
  15. 15.Is 12/42 in its simplest form? (a) No (b) Yes
  16. 16.Is 5/10 in its simplest form? (a) No (b) Yes
  17. 17.Write 48/56 in its simplest form. =
  18. 18.Write 18/27 in its simplest form. =
  19. 19.Write 2/10 in its simplest form. =
  20. 20.What is the HCF of 18 and 21?
  21. 21.Is 4/9 in its simplest form? (a) No (b) Yes
  22. 22.Write 9/18 in its simplest form. =
  23. 23.Is 1/9 in its simplest form? (a) No (b) Yes
  24. 24.Write 6/16 in its simplest form. =
  25. 25.Write 6/12 in its simplest form. =
  26. 26.Write 56/63 in its simplest form. =
  27. 27.Is 24/54 in its simplest form? (a) No (b) Yes
  28. 28.Write 27/63 in its simplest form. =
  29. 29.What is the HCF of 6 and 42?
  30. 30.What is the HCF of 32 and 36?
  31. 31.What is the HCF of 24 and 56?
  32. 32.What is the HCF of 3 and 15?
  33. 33.Is 5/8 in its simplest form? (a) Yes (b) No
  34. 34.Write 18/81 in its simplest form. =
  35. 35.What is the HCF of 56 and 72?
  36. 36.What is the HCF of 56 and 80?
  37. 37.Is 6/9 in its simplest form? (a) No (b) Yes
  38. 38.What is the HCF of 4 and 20?
  39. 39.Write 18/48 in its simplest form. =
  40. 40.Is 30/54 in its simplest form? (a) No (b) Yes

Answer key

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

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