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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 597 · 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 10 and 35?
  2. 2.Is 5/9 in its simplest form? (a) No (b) Yes
  3. 3.Is 5/30 in its simplest form? (a) Yes (b) No
  4. 4.What is the HCF of 18 and 27?
  5. 5.Write 35/45 in its simplest form. =
  6. 6.What is the HCF of 15 and 24?
  7. 7.What is the HCF of 7 and 42?
  8. 8.Write 6/20 in its simplest form. =
  9. 9.Write 7/35 in its simplest form. =
  10. 10.Is 4/12 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 4 and 18?
  12. 12.What is the HCF of 25 and 40?
  13. 13.What is the HCF of 3 and 18?
  14. 14.What is the HCF of 3 and 15?
  15. 15.Is 54/60 in its simplest form? (a) Yes (b) No
  16. 16.Is 7/8 in its simplest form? (a) Yes (b) No
  17. 17.What is the HCF of 8 and 14?
  18. 18.Is 8/9 in its simplest form? (a) No (b) Yes
  19. 19.Write 10/45 in its simplest form. =
  20. 20.Is 3/8 in its simplest form? (a) Yes (b) No
  21. 21.Write 8/24 in its simplest form. =
  22. 22.Is 24/30 in its simplest form? (a) Yes (b) No
  23. 23.Write 35/50 in its simplest form. =
  24. 24.Is 5/7 in its simplest form? (a) No (b) Yes
  25. 25.Write 3/9 in its simplest form. =
  26. 26.What is the HCF of 27 and 36?
  27. 27.Is 1/2 in its simplest form? (a) No (b) Yes
  28. 28.Is 25/40 in its simplest form? (a) Yes (b) No
  29. 29.Write 27/72 in its simplest form. =
  30. 30.Is 3/10 in its simplest form? (a) No (b) Yes
  31. 31.Write 7/49 in its simplest form. =
  32. 32.What is the HCF of 2 and 4?
  33. 33.What is the HCF of 2 and 6?
  34. 34.Is 16/28 in its simplest form? (a) Yes (b) No
  35. 35.Is 24/42 in its simplest form? (a) No (b) Yes
  36. 36.Write 42/54 in its simplest form. =
  37. 37.Write 28/36 in its simplest form. =
  38. 38.What is the HCF of 5 and 30?
  39. 39.Is 6/8 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 4 and 28?

Answer key

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

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