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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 521 · 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 2 and 6?
  2. 2.What is the HCF of 5 and 15?
  3. 3.Is 12/18 in its simplest form? (a) Yes (b) No
  4. 4.What is the HCF of 27 and 63?
  5. 5.What is the HCF of 3 and 9?
  6. 6.Is 1/2 in its simplest form? (a) No (b) Yes
  7. 7.What is the HCF of 8 and 40?
  8. 8.Write 8/48 in its simplest form. =
  9. 9.Is 1/8 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 12 and 42?
  11. 11.Write 16/18 in its simplest form. =
  12. 12.Is 7/10 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 28 and 32?
  14. 14.Write 7/70 in its simplest form. =
  15. 15.Write 56/63 in its simplest form. =
  16. 16.Is 1/5 in its simplest form? (a) Yes (b) No
  17. 17.Is 18/60 in its simplest form? (a) No (b) Yes
  18. 18.Is 3/4 in its simplest form? (a) No (b) Yes
  19. 19.What is the HCF of 40 and 72?
  20. 20.What is the HCF of 28 and 63?
  21. 21.Is 3/12 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 24 and 56?
  23. 23.Write 3/6 in its simplest form. =
  24. 24.Is 9/10 in its simplest form? (a) Yes (b) No
  25. 25.Is 8/10 in its simplest form? (a) No (b) Yes
  26. 26.What is the HCF of 7 and 14?
  27. 27.Write 27/45 in its simplest form. =
  28. 28.Write 20/45 in its simplest form. =
  29. 29.Write 16/20 in its simplest form. =
  30. 30.Is 12/30 in its simplest form? (a) Yes (b) No
  31. 31.Is 5/8 in its simplest form? (a) No (b) Yes
  32. 32.What is the HCF of 9 and 15?
  33. 33.What is the HCF of 5 and 50?
  34. 34.Write 5/15 in its simplest form. =
  35. 35.Write 7/49 in its simplest form. =
  36. 36.Write 24/27 in its simplest form. =
  37. 37.What is the HCF of 35 and 40?
  38. 38.What is the HCF of 4 and 36?
  39. 39.What is the HCF of 15 and 25?
  40. 40.Is 6/20 in its simplest form? (a) No (b) Yes

Answer key

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

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