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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 394 · 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 tank is 7/10 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  2. 2.A tank is 2/3 full of water. Then water filling 3/7 of the tank is used. What fraction of the tank is full now? =
  3. 3.A bottle has 8/9 litre of juice. Meera drinks 1/3 litre. How much juice is left (in litres)? =
  4. 4.4/9 − 1/6 =
  5. 5.5/6 − 2/9 =
  6. 6.3/4 − 7/10 =
  7. 7.4/5 − 1/10 =
  8. 8.5/9 − 1/3 =
  9. 9.2/3 − 1/9 =
  10. 10.7/8 − 1/2 =
  11. 11.1/3 − 1/6 =
  12. 12.7/10 − 1/3 =
  13. 13.2/5 − 1/10 =
  14. 14.A bottle has 2/3 litre of juice. Anaya drinks 5/9 litre. How much juice is left (in litres)? =
  15. 15.6/7 − 1/3 =
  16. 16.A bottle has 5/6 litre of juice. Ishaan drinks 3/8 litre. How much juice is left (in litres)? =
  17. 17.Rohan has a ribbon 1/6 m long and cuts off 1/8 m. How long is the ribbon now (in m)? =
  18. 18.Sara has a ribbon 6/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  19. 19.Anaya has a ribbon 5/6 m long and cuts off 2/9 m. How long is the ribbon now (in m)? =
  20. 20.A tank is 1/2 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  21. 21.A bottle has 9/10 litre of juice. Diya drinks 1/5 litre. How much juice is left (in litres)? =
  22. 22.1/6 − 1/9 =
  23. 23.A bottle has 5/7 litre of juice. Meera drinks 1/2 litre. How much juice is left (in litres)? =
  24. 24.A tank is 5/6 full of water. Then water filling 4/5 of the tank is used. What fraction of the tank is full now? =
  25. 25.A bottle has 4/7 litre of juice. Aarav drinks 1/4 litre. How much juice is left (in litres)? =
  26. 26.7/9 − 1/2 =
  27. 27.4/5 − 1/2 =
  28. 28.2/3 − 4/7 =
  29. 29.A tank is 1/2 full of water. Then water filling 2/7 of the tank is used. What fraction of the tank is full now? =
  30. 30.3/8 − 1/3 =
  31. 31.9/10 − 1/6 =
  32. 32.A bottle has 1/2 litre of juice. Meera drinks 3/10 litre. How much juice is left (in litres)? =
  33. 33.Tara has a ribbon 1/3 m long and cuts off 2/9 m. How long is the ribbon now (in m)? =
  34. 34.A tank is 4/7 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  35. 35.3/10 − 1/6 =
  36. 36.A tank is 4/5 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  37. 37.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? =
  38. 38.1/3 − 1/5 =
  39. 39.A tank is 2/3 full of water. Then water filling 5/8 of the tank is used. What fraction of the tank is full now? =
  40. 40.A bottle has 1/3 litre of juice. Meera drinks 1/10 litre. How much juice is left (in litres)? =

Answer key

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

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