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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 639 · 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 3/10 in its simplest form? (a) No (b) Yes
  2. 2.Write 12/54 in its simplest form. =
  3. 3.Is 7/9 in its simplest form? (a) Yes (b) No
  4. 4.Write 12/28 in its simplest form. =
  5. 5.Is 24/30 in its simplest form? (a) No (b) Yes
  6. 6.Write 5/50 in its simplest form. =
  7. 7.Is 3/8 in its simplest form? (a) No (b) Yes
  8. 8.Is 6/30 in its simplest form? (a) Yes (b) No
  9. 9.Is 2/6 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 8 and 16?
  11. 11.Write 2/18 in its simplest form. =
  12. 12.What is the HCF of 4 and 32?
  13. 13.What is the HCF of 8 and 12?
  14. 14.Is 4/18 in its simplest form? (a) No (b) Yes
  15. 15.What is the HCF of 9 and 21?
  16. 16.Is 6/10 in its simplest form? (a) Yes (b) No
  17. 17.What is the HCF of 42 and 48?
  18. 18.What is the HCF of 35 and 50?
  19. 19.Is 2/3 in its simplest form? (a) Yes (b) No
  20. 20.Is 1/6 in its simplest form? (a) No (b) Yes
  21. 21.Is 2/14 in its simplest form? (a) Yes (b) No
  22. 22.What is the HCF of 35 and 40?
  23. 23.What is the HCF of 28 and 63?
  24. 24.Is 6/7 in its simplest form? (a) No (b) Yes
  25. 25.Write 56/80 in its simplest form. =
  26. 26.Is 4/20 in its simplest form? (a) Yes (b) No
  27. 27.Is 8/20 in its simplest form? (a) Yes (b) No
  28. 28.What is the HCF of 21 and 24?
  29. 29.Is 4/9 in its simplest form? (a) Yes (b) No
  30. 30.Is 5/9 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 12 and 16?
  32. 32.Write 14/21 in its simplest form. =
  33. 33.What is the HCF of 15 and 35?
  34. 34.What is the HCF of 7 and 21?
  35. 35.What is the HCF of 8 and 36?
  36. 36.Write 6/9 in its simplest form. =
  37. 37.What is the HCF of 36 and 40?
  38. 38.Write 2/14 in its simplest form. =
  39. 39.Is 15/50 in its simplest form? (a) No (b) Yes
  40. 40.Is 4/8 in its simplest form? (a) No (b) Yes

Answer key

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

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