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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 295 · 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 8/36 in its simplest form. =
  2. 2.Write 14/63 in its simplest form. =
  3. 3.Write 2/20 in its simplest form. =
  4. 4.What is the HCF of 30 and 36?
  5. 5.Write 21/28 in its simplest form. =
  6. 6.Is 9/10 in its simplest form? (a) No (b) Yes
  7. 7.Is 2/4 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 3 and 12?
  9. 9.What is the HCF of 24 and 64?
  10. 10.What is the HCF of 21 and 28?
  11. 11.Is 6/36 in its simplest form? (a) No (b) Yes
  12. 12.Is 2/18 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 3 and 9?
  14. 14.Write 4/12 in its simplest form. =
  15. 15.Write 40/56 in its simplest form. =
  16. 16.Write 12/54 in its simplest form. =
  17. 17.What is the HCF of 18 and 24?
  18. 18.What is the HCF of 4 and 16?
  19. 19.Is 42/60 in its simplest form? (a) Yes (b) No
  20. 20.Is 5/8 in its simplest form? (a) Yes (b) No
  21. 21.Write 3/9 in its simplest form. =
  22. 22.Write 45/72 in its simplest form. =
  23. 23.Is 5/15 in its simplest form? (a) Yes (b) No
  24. 24.Is 6/20 in its simplest form? (a) Yes (b) No
  25. 25.Write 32/40 in its simplest form. =
  26. 26.Write 8/64 in its simplest form. =
  27. 27.What is the HCF of 4 and 28?
  28. 28.Write 14/16 in its simplest form. =
  29. 29.Write 72/81 in its simplest form. =
  30. 30.What is the HCF of 2 and 14?
  31. 31.Write 8/16 in its simplest form. =
  32. 32.Write 4/8 in its simplest form. =
  33. 33.Is 3/8 in its simplest form? (a) Yes (b) No
  34. 34.Is 35/40 in its simplest form? (a) Yes (b) No
  35. 35.Write 16/40 in its simplest form. =
  36. 36.What is the HCF of 45 and 50?
  37. 37.Is 5/6 in its simplest form? (a) No (b) Yes
  38. 38.Is 16/20 in its simplest form? (a) Yes (b) No
  39. 39.Write 12/21 in its simplest form. =
  40. 40.Is 15/50 in its simplest form? (a) Yes (b) No

Answer key

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

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