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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 479 · 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 56 and 63?
  2. 2.What is the HCF of 30 and 42?
  3. 3.Write 6/15 in its simplest form. =
  4. 4.What is the HCF of 2 and 14?
  5. 5.What is the HCF of 28 and 32?
  6. 6.What is the HCF of 20 and 36?
  7. 7.Write 3/27 in its simplest form. =
  8. 8.What is the HCF of 16 and 18?
  9. 9.What is the HCF of 4 and 6?
  10. 10.What is the HCF of 15 and 20?
  11. 11.Is 6/30 in its simplest form? (a) Yes (b) No
  12. 12.Write 21/49 in its simplest form. =
  13. 13.Write 9/81 in its simplest form. =
  14. 14.Is 4/9 in its simplest form? (a) Yes (b) No
  15. 15.What is the HCF of 8 and 32?
  16. 16.Is 27/30 in its simplest form? (a) Yes (b) No
  17. 17.Is 1/3 in its simplest form? (a) Yes (b) No
  18. 18.Write 16/56 in its simplest form. =
  19. 19.Is 15/50 in its simplest form? (a) No (b) Yes
  20. 20.What is the HCF of 21 and 49?
  21. 21.What is the HCF of 36 and 40?
  22. 22.What is the HCF of 12 and 15?
  23. 23.Write 25/40 in its simplest form. =
  24. 24.Write 28/32 in its simplest form. =
  25. 25.Is 1/7 in its simplest form? (a) Yes (b) No
  26. 26.Is 8/36 in its simplest form? (a) Yes (b) No
  27. 27.Is 4/16 in its simplest form? (a) Yes (b) No
  28. 28.Write 24/30 in its simplest form. =
  29. 29.Write 21/24 in its simplest form. =
  30. 30.Write 9/72 in its simplest form. =
  31. 31.Is 35/50 in its simplest form? (a) Yes (b) No
  32. 32.Is 1/6 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 40 and 56?
  34. 34.Is 6/7 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 8 and 16?
  36. 36.Write 4/8 in its simplest form. =
  37. 37.Is 8/10 in its simplest form? (a) Yes (b) No
  38. 38.Is 1/4 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 36 and 42?
  40. 40.What is the HCF of 3 and 12?

Answer key

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

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