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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 931 · 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.Is 42/60 in its simplest form? (a) Yes (b) No
  2. 2.What is the HCF of 30 and 36?
  3. 3.Is 32/36 in its simplest form? (a) Yes (b) No
  4. 4.Write 14/35 in its simplest form. =
  5. 5.What is the HCF of 9 and 15?
  6. 6.What is the HCF of 45 and 81?
  7. 7.Write 7/28 in its simplest form. =
  8. 8.Is 35/50 in its simplest form? (a) Yes (b) No
  9. 9.Is 4/7 in its simplest form? (a) Yes (b) No
  10. 10.Is 8/10 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 15 and 21?
  12. 12.Write 63/81 in its simplest form. =
  13. 13.Write 18/42 in its simplest form. =
  14. 14.What is the HCF of 6 and 21?
  15. 15.Is 1/5 in its simplest form? (a) Yes (b) No
  16. 16.Is 2/7 in its simplest form? (a) No (b) Yes
  17. 17.Write 9/24 in its simplest form. =
  18. 18.Is 8/18 in its simplest form? (a) Yes (b) No
  19. 19.Write 63/90 in its simplest form. =
  20. 20.Is 3/5 in its simplest form? (a) No (b) Yes
  21. 21.Is 18/20 in its simplest form? (a) Yes (b) No
  22. 22.Write 15/35 in its simplest form. =
  23. 23.What is the HCF of 8 and 56?
  24. 24.Is 2/12 in its simplest form? (a) Yes (b) No
  25. 25.Write 24/54 in its simplest form. =
  26. 26.Write 21/30 in its simplest form. =
  27. 27.What is the HCF of 36 and 42?
  28. 28.What is the HCF of 5 and 25?
  29. 29.Is 54/60 in its simplest form? (a) Yes (b) No
  30. 30.Is 6/20 in its simplest form? (a) No (b) Yes
  31. 31.Write 10/18 in its simplest form. =
  32. 32.Is 10/15 in its simplest form? (a) Yes (b) No
  33. 33.Write 32/56 in its simplest form. =
  34. 34.Write 8/28 in its simplest form. =
  35. 35.What is the HCF of 6 and 27?
  36. 36.Write 4/24 in its simplest form. =
  37. 37.Is 2/18 in its simplest form? (a) No (b) Yes
  38. 38.Is 15/40 in its simplest form? (a) No (b) Yes
  39. 39.Write 8/40 in its simplest form. =
  40. 40.Is 36/40 in its simplest form? (a) Yes (b) No

Answer key

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

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