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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 164 · 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 20?
  2. 2.Write 63/72 in its simplest form. =
  3. 3.Is 18/48 in its simplest form? (a) No (b) Yes
  4. 4.Write 6/15 in its simplest form. =
  5. 5.What is the HCF of 36 and 40?
  6. 6.Write 16/18 in its simplest form. =
  7. 7.What is the HCF of 45 and 72?
  8. 8.Is 2/7 in its simplest form? (a) Yes (b) No
  9. 9.Write 12/32 in its simplest form. =
  10. 10.Is 30/42 in its simplest form? (a) No (b) Yes
  11. 11.Write 8/14 in its simplest form. =
  12. 12.Is 9/10 in its simplest form? (a) Yes (b) No
  13. 13.Is 3/6 in its simplest form? (a) Yes (b) No
  14. 14.Write 2/10 in its simplest form. =
  15. 15.What is the HCF of 28 and 32?
  16. 16.Is 10/15 in its simplest form? (a) Yes (b) No
  17. 17.Is 4/14 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 63 and 72?
  19. 19.What is the HCF of 2 and 6?
  20. 20.What is the HCF of 14 and 49?
  21. 21.Write 2/20 in its simplest form. =
  22. 22.What is the HCF of 9 and 12?
  23. 23.What is the HCF of 6 and 30?
  24. 24.What is the HCF of 49 and 70?
  25. 25.Is 20/28 in its simplest form? (a) No (b) Yes
  26. 26.Is 1/10 in its simplest form? (a) Yes (b) No
  27. 27.Is 4/10 in its simplest form? (a) Yes (b) No
  28. 28.What is the HCF of 8 and 24?
  29. 29.Write 7/14 in its simplest form. =
  30. 30.What is the HCF of 36 and 81?
  31. 31.What is the HCF of 10 and 25?
  32. 32.What is the HCF of 4 and 20?
  33. 33.Write 28/32 in its simplest form. =
  34. 34.What is the HCF of 2 and 14?
  35. 35.Write 16/40 in its simplest form. =
  36. 36.What is the HCF of 6 and 15?
  37. 37.Is 1/9 in its simplest form? (a) No (b) Yes
  38. 38.Write 15/25 in its simplest form. =
  39. 39.Is 4/9 in its simplest form? (a) Yes (b) No
  40. 40.Write 12/30 in its simplest form. =

Answer key

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

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