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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 124 · 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 5/10 in its simplest form. =
  2. 2.What is the HCF of 5 and 35?
  3. 3.Write 12/28 in its simplest form. =
  4. 4.Write 9/24 in its simplest form. =
  5. 5.Write 12/42 in its simplest form. =
  6. 6.Is 12/30 in its simplest form? (a) No (b) Yes
  7. 7.What is the HCF of 27 and 72?
  8. 8.Write 6/60 in its simplest form. =
  9. 9.Is 3/8 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 7 and 63?
  11. 11.What is the HCF of 63 and 72?
  12. 12.Is 36/40 in its simplest form? (a) No (b) Yes
  13. 13.Write 12/54 in its simplest form. =
  14. 14.What is the HCF of 12 and 21?
  15. 15.What is the HCF of 24 and 32?
  16. 16.Write 8/72 in its simplest form. =
  17. 17.Write 21/28 in its simplest form. =
  18. 18.Is 18/60 in its simplest form? (a) Yes (b) No
  19. 19.Write 45/63 in its simplest form. =
  20. 20.Write 6/16 in its simplest form. =
  21. 21.Is 15/21 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 7 and 35?
  23. 23.Is 5/35 in its simplest form? (a) No (b) Yes
  24. 24.Write 6/20 in its simplest form. =
  25. 25.Write 56/80 in its simplest form. =
  26. 26.Is 5/9 in its simplest form? (a) Yes (b) No
  27. 27.Write 36/45 in its simplest form. =
  28. 28.What is the HCF of 9 and 36?
  29. 29.Write 10/16 in its simplest form. =
  30. 30.Write 4/10 in its simplest form. =
  31. 31.What is the HCF of 32 and 56?
  32. 32.Write 4/6 in its simplest form. =
  33. 33.What is the HCF of 21 and 35?
  34. 34.Write 18/63 in its simplest form. =
  35. 35.Is 16/36 in its simplest form? (a) No (b) Yes
  36. 36.Write 25/35 in its simplest form. =
  37. 37.Write 45/81 in its simplest form. =
  38. 38.Is 3/10 in its simplest form? (a) Yes (b) No
  39. 39.Is 5/7 in its simplest form? (a) Yes (b) No
  40. 40.What is the HCF of 8 and 24?

Answer key

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

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