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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 301 · 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 2/3 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 4 and 20?
  3. 3.What is the HCF of 3 and 30?
  4. 4.What is the HCF of 15 and 18?
  5. 5.Write 4/24 in its simplest form. =
  6. 6.Write 8/10 in its simplest form. =
  7. 7.Is 3/8 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 9 and 36?
  9. 9.What is the HCF of 10 and 35?
  10. 10.Is 4/12 in its simplest form? (a) Yes (b) No
  11. 11.Is 4/16 in its simplest form? (a) No (b) Yes
  12. 12.What is the HCF of 15 and 35?
  13. 13.Is 3/18 in its simplest form? (a) Yes (b) No
  14. 14.Write 30/48 in its simplest form. =
  15. 15.What is the HCF of 9 and 24?
  16. 16.What is the HCF of 32 and 40?
  17. 17.What is the HCF of 27 and 90?
  18. 18.Is 2/6 in its simplest form? (a) Yes (b) No
  19. 19.Is 1/4 in its simplest form? (a) Yes (b) No
  20. 20.Is 1/3 in its simplest form? (a) No (b) Yes
  21. 21.Write 9/72 in its simplest form. =
  22. 22.Write 15/40 in its simplest form. =
  23. 23.What is the HCF of 3 and 15?
  24. 24.Is 30/48 in its simplest form? (a) Yes (b) No
  25. 25.Write 16/18 in its simplest form. =
  26. 26.Is 32/36 in its simplest form? (a) No (b) Yes
  27. 27.Write 56/63 in its simplest form. =
  28. 28.What is the HCF of 16 and 36?
  29. 29.Write 8/28 in its simplest form. =
  30. 30.Write 8/40 in its simplest form. =
  31. 31.Is 7/9 in its simplest form? (a) No (b) Yes
  32. 32.Is 4/28 in its simplest form? (a) Yes (b) No
  33. 33.Is 1/7 in its simplest form? (a) Yes (b) No
  34. 34.Write 35/45 in its simplest form. =
  35. 35.Write 9/36 in its simplest form. =
  36. 36.Is 10/35 in its simplest form? (a) No (b) Yes
  37. 37.What is the HCF of 6 and 18?
  38. 38.Is 2/7 in its simplest form? (a) Yes (b) No
  39. 39.Write 7/63 in its simplest form. =
  40. 40.Write 14/20 in its simplest form. =

Answer key

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

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