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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 447 · 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 1/2 litre of juice. Diya drinks 2/9 litre. How much juice is left (in litres)? =
  2. 2.2/5 − 1/4 =
  3. 3.Sara has a ribbon 3/8 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  4. 4.6/7 − 1/4 =
  5. 5.3/8 − 1/6 =
  6. 6.Aarav has a ribbon 5/6 m long and cuts off 3/4 m. How long is the ribbon now (in m)? =
  7. 7.A bottle has 5/9 litre of juice. Anaya drinks 1/3 litre. How much juice is left (in litres)? =
  8. 8.2/7 − 1/4 =
  9. 9.5/9 − 1/6 =
  10. 10.6/7 − 2/3 =
  11. 11.9/10 − 1/3 =
  12. 12.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? =
  13. 13.A bottle has 9/10 litre of juice. Kabir drinks 5/6 litre. How much juice is left (in litres)? =
  14. 14.A bottle has 8/9 litre of juice. Tara drinks 2/3 litre. How much juice is left (in litres)? =
  15. 15.2/3 − 2/7 =
  16. 16.Aarav has a ribbon 8/9 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  17. 17.A tank is 9/10 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  18. 18.3/4 − 1/7 =
  19. 19.2/3 − 1/10 =
  20. 20.A bottle has 1/3 litre of juice. Vihaan drinks 1/5 litre. How much juice is left (in litres)? =
  21. 21.2/3 − 3/10 =
  22. 22.A tank is 6/7 full of water. Then water filling 3/4 of the tank is used. What fraction of the tank is full now? =
  23. 23.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? =
  24. 24.6/7 − 1/2 =
  25. 25.5/6 − 5/8 =
  26. 26.A tank is 3/4 full of water. Then water filling 3/5 of the tank is used. What fraction of the tank is full now? =
  27. 27.3/10 − 1/4 =
  28. 28.A bottle has 3/4 litre of juice. Diya drinks 2/5 litre. How much juice is left (in litres)? =
  29. 29.Anaya has a ribbon 2/3 m long and cuts off 2/5 m. How long is the ribbon now (in m)? =
  30. 30.A tank is 5/9 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  31. 31.A bottle has 3/5 litre of juice. Arjun drinks 1/10 litre. How much juice is left (in litres)? =
  32. 32.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? =
  33. 33.A bottle has 1/3 litre of juice. Vihaan drinks 1/8 litre. How much juice is left (in litres)? =
  34. 34.1/2 − 1/8 =
  35. 35.3/5 − 3/10 =
  36. 36.3/4 − 2/5 =
  37. 37.1/3 − 2/9 =
  38. 38.A bottle has 5/6 litre of juice. Diya drinks 4/5 litre. How much juice is left (in litres)? =
  39. 39.A bottle has 1/2 litre of juice. Kabir drinks 2/9 litre. How much juice is left (in litres)? =
  40. 40.A bottle has 3/4 litre of juice. Meera drinks 5/7 litre. How much juice is left (in litres)? =

Answer key

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

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