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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 157 · 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 63 and 72?
  2. 2.Write 21/27 in its simplest form. =
  3. 3.Is 10/16 in its simplest form? (a) No (b) Yes
  4. 4.Write 6/14 in its simplest form. =
  5. 5.Is 4/7 in its simplest form? (a) No (b) Yes
  6. 6.Is 2/5 in its simplest form? (a) No (b) Yes
  7. 7.Is 3/5 in its simplest form? (a) Yes (b) No
  8. 8.Is 5/10 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 16 and 28?
  10. 10.Write 21/30 in its simplest form. =
  11. 11.Write 2/16 in its simplest form. =
  12. 12.What is the HCF of 6 and 36?
  13. 13.Is 24/54 in its simplest form? (a) Yes (b) No
  14. 14.Is 32/36 in its simplest form? (a) Yes (b) No
  15. 15.What is the HCF of 54 and 60?
  16. 16.Write 24/30 in its simplest form. =
  17. 17.Is 7/9 in its simplest form? (a) No (b) Yes
  18. 18.Write 5/10 in its simplest form. =
  19. 19.Write 7/35 in its simplest form. =
  20. 20.Is 20/35 in its simplest form? (a) Yes (b) No
  21. 21.Write 9/12 in its simplest form. =
  22. 22.Write 3/6 in its simplest form. =
  23. 23.What is the HCF of 7 and 35?
  24. 24.What is the HCF of 24 and 32?
  25. 25.Write 9/15 in its simplest form. =
  26. 26.Write 12/18 in its simplest form. =
  27. 27.What is the HCF of 4 and 40?
  28. 28.Write 12/20 in its simplest form. =
  29. 29.What is the HCF of 24 and 40?
  30. 30.Write 63/90 in its simplest form. =
  31. 31.Write 18/48 in its simplest form. =
  32. 32.Is 54/60 in its simplest form? (a) Yes (b) No
  33. 33.Is 3/18 in its simplest form? (a) No (b) Yes
  34. 34.Is 8/14 in its simplest form? (a) No (b) Yes
  35. 35.Is 3/30 in its simplest form? (a) Yes (b) No
  36. 36.Write 6/30 in its simplest form. =
  37. 37.Is 12/32 in its simplest form? (a) No (b) Yes
  38. 38.Write 24/54 in its simplest form. =
  39. 39.Write 27/63 in its simplest form. =
  40. 40.What is the HCF of 30 and 35?

Answer key

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

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