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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 737 · 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.Write 36/42 in its simplest form. =
  2. 2.Write 21/28 in its simplest form. =
  3. 3.Is 6/36 in its simplest form? (a) Yes (b) No
  4. 4.What is the HCF of 49 and 56?
  5. 5.Write 27/45 in its simplest form. =
  6. 6.Write 8/18 in its simplest form. =
  7. 7.Is 5/40 in its simplest form? (a) Yes (b) No
  8. 8.What is the HCF of 20 and 25?
  9. 9.What is the HCF of 6 and 8?
  10. 10.What is the HCF of 3 and 15?
  11. 11.What is the HCF of 2 and 10?
  12. 12.Write 12/18 in its simplest form. =
  13. 13.Write 8/32 in its simplest form. =
  14. 14.Write 27/30 in its simplest form. =
  15. 15.Is 8/12 in its simplest form? (a) No (b) Yes
  16. 16.Is 2/3 in its simplest form? (a) No (b) Yes
  17. 17.Write 3/9 in its simplest form. =
  18. 18.What is the HCF of 45 and 72?
  19. 19.Is 4/5 in its simplest form? (a) No (b) Yes
  20. 20.What is the HCF of 28 and 35?
  21. 21.Write 3/12 in its simplest form. =
  22. 22.Is 21/24 in its simplest form? (a) No (b) Yes
  23. 23.Is 6/15 in its simplest form? (a) No (b) Yes
  24. 24.Write 54/63 in its simplest form. =
  25. 25.Write 3/24 in its simplest form. =
  26. 26.Write 14/18 in its simplest form. =
  27. 27.Is 42/54 in its simplest form? (a) Yes (b) No
  28. 28.Is 1/4 in its simplest form? (a) No (b) Yes
  29. 29.What is the HCF of 21 and 24?
  30. 30.Is 1/7 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 3 and 6?
  32. 32.Write 20/25 in its simplest form. =
  33. 33.Is 3/7 in its simplest form? (a) No (b) Yes
  34. 34.Write 12/40 in its simplest form. =
  35. 35.Is 9/12 in its simplest form? (a) No (b) Yes
  36. 36.Is 3/10 in its simplest form? (a) No (b) Yes
  37. 37.Is 1/9 in its simplest form? (a) Yes (b) No
  38. 38.Is 3/15 in its simplest form? (a) No (b) Yes
  39. 39.Write 9/12 in its simplest form. =
  40. 40.Write 24/32 in its simplest form. =

Answer key

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

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