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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 127 · 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.A bottle has 8/9 litre of juice. Rohan drinks 2/3 litre. How much juice is left (in litres)? =
  2. 2.5/6 − 3/8 =
  3. 3.A tank is 7/9 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  4. 4.4/5 − 3/4 =
  5. 5.A bottle has 4/9 litre of juice. Aarav drinks 1/6 litre. How much juice is left (in litres)? =
  6. 6.3/5 − 1/4 =
  7. 7.A bottle has 1/5 litre of juice. Kabir drinks 1/10 litre. How much juice is left (in litres)? =
  8. 8.A bottle has 5/7 litre of juice. Aarav drinks 1/2 litre. How much juice is left (in litres)? =
  9. 9.Ishaan has a ribbon 3/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  10. 10.Riya has a ribbon 2/3 m long and cuts off 3/7 m. How long is the ribbon now (in m)? =
  11. 11.3/5 − 3/10 =
  12. 12.9/10 − 1/3 =
  13. 13.1/4 − 1/10 =
  14. 14.8/9 − 1/3 =
  15. 15.2/3 − 3/5 =
  16. 16.A bottle has 7/9 litre of juice. Riya drinks 1/3 litre. How much juice is left (in litres)? =
  17. 17.A bottle has 4/5 litre of juice. Anaya drinks 1/4 litre. How much juice is left (in litres)? =
  18. 18.A tank is 2/5 full of water. Then water filling 1/10 of the tank is used. What fraction of the tank is full now? =
  19. 19.A tank is 1/2 full of water. Then water filling 1/8 of the tank is used. What fraction of the tank is full now? =
  20. 20.3/4 − 3/7 =
  21. 21.3/4 − 1/3 =
  22. 22.1/6 − 1/9 =
  23. 23.Vihaan has a ribbon 3/4 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  24. 24.Aarav has a ribbon 6/7 m long and cuts off 3/4 m. How long is the ribbon now (in m)? =
  25. 25.5/6 − 7/9 =
  26. 26.2/3 − 1/2 =
  27. 27.2/3 − 1/7 =
  28. 28.7/9 − 1/2 =
  29. 29.Anaya has a ribbon 2/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  30. 30.A tank is 2/3 full of water. Then water filling 3/10 of the tank is used. What fraction of the tank is full now? =
  31. 31.4/9 − 1/6 =
  32. 32.3/4 − 3/5 =
  33. 33.A bottle has 4/7 litre of juice. Vihaan drinks 1/4 litre. How much juice is left (in litres)? =
  34. 34.A tank is 3/4 full of water. Then water filling 2/3 of the tank is used. What fraction of the tank is full now? =
  35. 35.3/8 − 1/6 =
  36. 36.A tank is 8/9 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  37. 37.A bottle has 1/2 litre of juice. Diya drinks 1/7 litre. How much juice is left (in litres)? =
  38. 38.A tank is 4/5 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  39. 39.1/2 − 1/7 =
  40. 40.A bottle has 1/2 litre of juice. Tara drinks 3/8 litre. How much juice is left (in litres)? =

Answer key

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

Free fractions lessons, practice and worksheets at talentjr.in/fractions-for-kids