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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 705 · 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 4/12 in its simplest form. =
  2. 2.Write 3/18 in its simplest form. =
  3. 3.Write 54/60 in its simplest form. =
  4. 4.Write 6/54 in its simplest form. =
  5. 5.What is the HCF of 24 and 27?
  6. 6.Write 9/30 in its simplest form. =
  7. 7.What is the HCF of 56 and 64?
  8. 8.Write 25/40 in its simplest form. =
  9. 9.Write 15/40 in its simplest form. =
  10. 10.Write 45/63 in its simplest form. =
  11. 11.What is the HCF of 24 and 42?
  12. 12.Is 3/8 in its simplest form? (a) Yes (b) No
  13. 13.Is 6/27 in its simplest form? (a) No (b) Yes
  14. 14.What is the HCF of 63 and 81?
  15. 15.Is 2/3 in its simplest form? (a) Yes (b) No
  16. 16.Write 2/10 in its simplest form. =
  17. 17.Write 21/35 in its simplest form. =
  18. 18.Write 18/63 in its simplest form. =
  19. 19.What is the HCF of 5 and 25?
  20. 20.Write 20/28 in its simplest form. =
  21. 21.Write 9/24 in its simplest form. =
  22. 22.What is the HCF of 27 and 45?
  23. 23.Write 8/20 in its simplest form. =
  24. 24.Is 1/2 in its simplest form? (a) Yes (b) No
  25. 25.Write 7/35 in its simplest form. =
  26. 26.Write 63/81 in its simplest form. =
  27. 27.What is the HCF of 8 and 18?
  28. 28.What is the HCF of 9 and 24?
  29. 29.Write 18/81 in its simplest form. =
  30. 30.What is the HCF of 3 and 30?
  31. 31.What is the HCF of 28 and 49?
  32. 32.What is the HCF of 42 and 60?
  33. 33.What is the HCF of 21 and 35?
  34. 34.What is the HCF of 4 and 10?
  35. 35.What is the HCF of 4 and 8?
  36. 36.Write 6/14 in its simplest form. =
  37. 37.Write 4/14 in its simplest form. =
  38. 38.Write 24/80 in its simplest form. =
  39. 39.Write 16/20 in its simplest form. =
  40. 40.Write 9/63 in its simplest form. =

Answer key

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

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