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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 304 · 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 12/30 in its simplest form. =
  2. 2.What is the HCF of 3 and 18?
  3. 3.Is 28/40 in its simplest form? (a) No (b) Yes
  4. 4.Write 7/35 in its simplest form. =
  5. 5.Write 4/32 in its simplest form. =
  6. 6.What is the HCF of 4 and 40?
  7. 7.What is the HCF of 35 and 45?
  8. 8.What is the HCF of 16 and 18?
  9. 9.Write 2/4 in its simplest form. =
  10. 10.Is 30/54 in its simplest form? (a) Yes (b) No
  11. 11.Is 2/4 in its simplest form? (a) No (b) Yes
  12. 12.Write 6/8 in its simplest form. =
  13. 13.What is the HCF of 6 and 54?
  14. 14.What is the HCF of 16 and 36?
  15. 15.What is the HCF of 28 and 36?
  16. 16.Write 16/56 in its simplest form. =
  17. 17.Write 21/27 in its simplest form. =
  18. 18.Write 28/63 in its simplest form. =
  19. 19.Write 35/50 in its simplest form. =
  20. 20.What is the HCF of 5 and 35?
  21. 21.Is 35/40 in its simplest form? (a) No (b) Yes
  22. 22.Write 27/30 in its simplest form. =
  23. 23.What is the HCF of 15 and 35?
  24. 24.What is the HCF of 18 and 30?
  25. 25.Is 18/21 in its simplest form? (a) Yes (b) No
  26. 26.What is the HCF of 7 and 56?
  27. 27.What is the HCF of 4 and 14?
  28. 28.What is the HCF of 21 and 30?
  29. 29.Write 9/18 in its simplest form. =
  30. 30.Write 20/24 in its simplest form. =
  31. 31.What is the HCF of 49 and 70?
  32. 32.What is the HCF of 63 and 72?
  33. 33.Write 9/90 in its simplest form. =
  34. 34.What is the HCF of 7 and 28?
  35. 35.Is 3/5 in its simplest form? (a) Yes (b) No
  36. 36.What is the HCF of 5 and 50?
  37. 37.What is the HCF of 24 and 32?
  38. 38.Write 15/24 in its simplest form. =
  39. 39.Is 2/3 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 18 and 20?

Answer key

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

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