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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 361 · 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 16/72 in its simplest form. =
  2. 2.What is the HCF of 6 and 30?
  3. 3.What is the HCF of 20 and 35?
  4. 4.What is the HCF of 14 and 21?
  5. 5.Write 5/20 in its simplest form. =
  6. 6.What is the HCF of 8 and 10?
  7. 7.Write 21/30 in its simplest form. =
  8. 8.Write 8/18 in its simplest form. =
  9. 9.Is 28/36 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 20 and 36?
  11. 11.What is the HCF of 5 and 40?
  12. 12.Write 30/48 in its simplest form. =
  13. 13.Write 12/30 in its simplest form. =
  14. 14.Write 6/10 in its simplest form. =
  15. 15.Write 36/45 in its simplest form. =
  16. 16.Is 16/18 in its simplest form? (a) No (b) Yes
  17. 17.Write 24/80 in its simplest form. =
  18. 18.Write 12/15 in its simplest form. =
  19. 19.Is 3/6 in its simplest form? (a) Yes (b) No
  20. 20.What is the HCF of 12 and 20?
  21. 21.Is 6/42 in its simplest form? (a) No (b) Yes
  22. 22.Is 3/7 in its simplest form? (a) Yes (b) No
  23. 23.Write 12/32 in its simplest form. =
  24. 24.Is 20/24 in its simplest form? (a) Yes (b) No
  25. 25.Write 12/40 in its simplest form. =
  26. 26.Write 54/63 in its simplest form. =
  27. 27.What is the HCF of 9 and 36?
  28. 28.Is 8/12 in its simplest form? (a) Yes (b) No
  29. 29.Write 49/56 in its simplest form. =
  30. 30.What is the HCF of 8 and 24?
  31. 31.What is the HCF of 25 and 35?
  32. 32.Write 16/40 in its simplest form. =
  33. 33.What is the HCF of 8 and 36?
  34. 34.Is 5/40 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 64 and 72?
  36. 36.Write 3/12 in its simplest form. =
  37. 37.Is 28/40 in its simplest form? (a) Yes (b) No
  38. 38.Write 7/21 in its simplest form. =
  39. 39.Write 27/30 in its simplest form. =
  40. 40.Is 3/5 in its simplest form? (a) Yes (b) No

Answer key

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

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