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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 88 · 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 10/14 in its simplest form? (a) Yes (b) No
  2. 2.Is 16/28 in its simplest form? (a) Yes (b) No
  3. 3.Is 5/9 in its simplest form? (a) Yes (b) No
  4. 4.Write 12/20 in its simplest form. =
  5. 5.What is the HCF of 56 and 80?
  6. 6.What is the HCF of 20 and 36?
  7. 7.Is 2/8 in its simplest form? (a) Yes (b) No
  8. 8.Is 5/15 in its simplest form? (a) Yes (b) No
  9. 9.Is 5/7 in its simplest form? (a) Yes (b) No
  10. 10.Write 9/63 in its simplest form. =
  11. 11.Write 2/14 in its simplest form. =
  12. 12.Is 10/12 in its simplest form? (a) Yes (b) No
  13. 13.Write 12/42 in its simplest form. =
  14. 14.Write 18/60 in its simplest form. =
  15. 15.Write 56/64 in its simplest form. =
  16. 16.Write 35/50 in its simplest form. =
  17. 17.Write 8/32 in its simplest form. =
  18. 18.Is 1/10 in its simplest form? (a) No (b) Yes
  19. 19.What is the HCF of 28 and 40?
  20. 20.Is 1/4 in its simplest form? (a) Yes (b) No
  21. 21.Write 6/30 in its simplest form. =
  22. 22.Write 15/40 in its simplest form. =
  23. 23.Write 12/15 in its simplest form. =
  24. 24.Write 4/6 in its simplest form. =
  25. 25.Is 1/2 in its simplest form? (a) Yes (b) No
  26. 26.Write 10/15 in its simplest form. =
  27. 27.Write 6/15 in its simplest form. =
  28. 28.What is the HCF of 4 and 20?
  29. 29.What is the HCF of 21 and 30?
  30. 30.Write 45/54 in its simplest form. =
  31. 31.What is the HCF of 12 and 28?
  32. 32.Write 2/10 in its simplest form. =
  33. 33.What is the HCF of 8 and 56?
  34. 34.What is the HCF of 8 and 40?
  35. 35.Write 21/70 in its simplest form. =
  36. 36.What is the HCF of 9 and 12?
  37. 37.What is the HCF of 56 and 64?
  38. 38.Is 5/8 in its simplest form? (a) No (b) Yes
  39. 39.Is 6/15 in its simplest form? (a) Yes (b) No
  40. 40.Write 15/18 in its simplest form. =

Answer key

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

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