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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 259 · 40 questions
TalentJR

The method (LCM, then take away): Find the LCM of the two bottom numbers. Change each fraction to that bottom number. Subtract the tops, keep the bottom, and simplify.

NameDateTime takenScore ___ / 40
  1. 1.Anaya has a ribbon 2/3 m long and cuts off 5/9 m. How long is the ribbon now (in m)? =
  2. 2.3/4 − 4/7 =
  3. 3.9/10 − 2/5 =
  4. 4.5/6 − 2/9 =
  5. 5.A tank is 5/6 full of water. Then water filling 5/9 of the tank is used. What fraction of the tank is full now? =
  6. 6.Diya has a ribbon 9/10 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  7. 7.Riya has a ribbon 5/6 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  8. 8.A tank is 4/9 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  9. 9.4/7 − 1/2 =
  10. 10.A tank is 3/4 full of water. Then water filling 2/5 of the tank is used. What fraction of the tank is full now? =
  11. 11.1/2 − 3/7 =
  12. 12.Aarav has a ribbon 1/3 m long and cuts off 1/9 m. How long is the ribbon now (in m)? =
  13. 13.1/2 − 1/7 =
  14. 14.Diya has a ribbon 7/9 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  15. 15.A tank is 5/9 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  16. 16.7/9 − 1/3 =
  17. 17.A tank is 3/4 full of water. Then water filling 3/7 of the tank is used. What fraction of the tank is full now? =
  18. 18.Anaya has a ribbon 4/5 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  19. 19.2/5 − 1/10 =
  20. 20.5/8 − 1/2 =
  21. 21.5/8 − 1/4 =
  22. 22.1/2 − 1/9 =
  23. 23.2/3 − 1/6 =
  24. 24.5/7 − 2/3 =
  25. 25.2/3 − 4/9 =
  26. 26.A bottle has 1/3 litre of juice. Anaya drinks 1/8 litre. How much juice is left (in litres)? =
  27. 27.3/4 − 5/7 =
  28. 28.1/5 − 1/10 =
  29. 29.Diya has a ribbon 2/5 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  30. 30.A bottle has 9/10 litre of juice. Arjun drinks 1/5 litre. How much juice is left (in litres)? =
  31. 31.A tank is 1/2 full of water. Then water filling 1/5 of the tank is used. What fraction of the tank is full now? =
  32. 32.3/8 − 1/4 =
  33. 33.7/8 − 5/6 =
  34. 34.3/7 − 1/3 =
  35. 35.6/7 − 1/3 =
  36. 36.7/10 − 2/5 =
  37. 37.2/3 − 2/5 =
  38. 38.3/4 − 1/6 =
  39. 39.3/7 − 1/4 =
  40. 40.A bottle has 1/4 litre of juice. Tara drinks 1/7 litre. How much juice is left (in litres)? =

Answer key

  1. 1/9
  2. 5/28
  3. 1/2
  4. 11/18
  5. 5/18
  6. 11/15
  7. 7/12
  8. 5/18
  9. 1/14
  10. 7/20
  11. 1/14
  12. 2/9
  13. 5/14
  14. 1/9
  15. 7/18
  16. 4/9
  17. 9/28
  18. 7/10
  19. 3/10
  20. 1/8
  21. 3/8
  22. 7/18
  23. 1/2
  24. 1/21
  25. 2/9
  26. 5/24
  27. 1/28
  28. 1/10
  29. 7/30
  30. 7/10
  31. 3/10
  32. 1/8
  33. 1/24
  34. 2/21
  35. 11/21
  36. 3/10
  37. 4/15
  38. 7/12
  39. 5/28
  40. 3/28

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