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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 195 · 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 4/5 litre of juice. Sara drinks 2/3 litre. How much juice is left (in litres)? =
  2. 2.Arjun has a ribbon 8/9 m long and cuts off 5/6 m. How long is the ribbon now (in m)? =
  3. 3.Meera has a ribbon 7/8 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  4. 4.1/2 − 4/9 =
  5. 5.3/4 − 1/2 =
  6. 6.3/4 − 4/7 =
  7. 7.A bottle has 4/7 litre of juice. Aarav drinks 1/2 litre. How much juice is left (in litres)? =
  8. 8.Meera has a ribbon 1/3 m long and cuts off 1/7 m. How long is the ribbon now (in m)? =
  9. 9.7/8 − 2/3 =
  10. 10.3/4 − 1/8 =
  11. 11.A tank is 2/3 full of water. Then water filling 1/9 of the tank is used. What fraction of the tank is full now? =
  12. 12.A bottle has 2/7 litre of juice. Arjun drinks 1/4 litre. How much juice is left (in litres)? =
  13. 13.1/3 − 1/9 =
  14. 14.A tank is 1/3 full of water. Then water filling 1/10 of the tank is used. What fraction of the tank is full now? =
  15. 15.2/3 − 3/5 =
  16. 16.3/10 − 1/4 =
  17. 17.A tank is 3/4 full of water. Then water filling 3/8 of the tank is used. What fraction of the tank is full now? =
  18. 18.A bottle has 3/4 litre of juice. Tara drinks 1/5 litre. How much juice is left (in litres)? =
  19. 19.5/6 − 1/8 =
  20. 20.1/4 − 1/10 =
  21. 21.1/2 − 3/7 =
  22. 22.8/9 − 2/3 =
  23. 23.5/6 − 2/3 =
  24. 24.A tank is 1/3 full of water. Then water filling 2/9 of the tank is used. What fraction of the tank is full now? =
  25. 25.5/6 − 7/9 =
  26. 26.A bottle has 4/7 litre of juice. Ishaan drinks 1/2 litre. How much juice is left (in litres)? =
  27. 27.A tank is 1/4 full of water. Then water filling 1/5 of the tank is used. What fraction of the tank is full now? =
  28. 28.A bottle has 1/3 litre of juice. Anaya drinks 1/5 litre. How much juice is left (in litres)? =
  29. 29.5/7 − 1/2 =
  30. 30.A tank is 1/2 full of water. Then water filling 3/8 of the tank is used. What fraction of the tank is full now? =
  31. 31.3/4 − 3/8 =
  32. 32.A bottle has 5/6 litre of juice. Rohan drinks 2/5 litre. How much juice is left (in litres)? =
  33. 33.4/5 − 3/4 =
  34. 34.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? =
  35. 35.5/6 − 2/9 =
  36. 36.Kabir has a ribbon 5/9 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  37. 37.A tank is 2/5 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  38. 38.3/5 − 1/10 =
  39. 39.A tank is 3/5 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  40. 40.7/9 − 2/3 =

Answer key

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

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