← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 478 · 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 5/6 litre of juice. Anaya drinks 5/8 litre. How much juice is left (in litres)? =
  2. 2.A bottle has 2/3 litre of juice. Vihaan drinks 4/9 litre. How much juice is left (in litres)? =
  3. 3.1/5 − 1/10 =
  4. 4.5/9 − 1/6 =
  5. 5.3/4 − 3/7 =
  6. 6.A tank is 7/10 full of water. Then water filling 2/3 of the tank is used. What fraction of the tank is full now? =
  7. 7.1/2 − 1/9 =
  8. 8.3/7 − 1/3 =
  9. 9.9/10 − 1/4 =
  10. 10.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? =
  11. 11.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? =
  12. 12.A tank is 5/8 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  13. 13.A bottle has 3/7 litre of juice. Diya drinks 1/3 litre. How much juice is left (in litres)? =
  14. 14.A tank is 8/9 full of water. Then water filling 2/3 of the tank is used. What fraction of the tank is full now? =
  15. 15.2/9 − 1/6 =
  16. 16.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? =
  17. 17.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? =
  18. 18.Vihaan has a ribbon 9/10 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  19. 19.Rohan has a ribbon 2/5 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  20. 20.A tank is 1/2 full of water. Then water filling 1/9 of the tank is used. What fraction of the tank is full now? =
  21. 21.6/7 − 1/2 =
  22. 22.Ishaan has a ribbon 4/5 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  23. 23.3/4 − 1/7 =
  24. 24.1/2 − 4/9 =
  25. 25.5/6 − 1/3 =
  26. 26.A tank is 2/3 full of water. Then water filling 4/7 of the tank is used. What fraction of the tank is full now? =
  27. 27.9/10 − 1/3 =
  28. 28.8/9 − 2/3 =
  29. 29.1/4 − 1/6 =
  30. 30.A tank is 2/5 full of water. Then water filling 3/10 of the tank is used. What fraction of the tank is full now? =
  31. 31.5/7 − 1/2 =
  32. 32.4/7 − 1/3 =
  33. 33.Diya has a ribbon 1/3 m long and cuts off 1/8 m. How long is the ribbon now (in m)? =
  34. 34.1/2 − 1/6 =
  35. 35.A bottle has 5/6 litre of juice. Ishaan drinks 2/5 litre. How much juice is left (in litres)? =
  36. 36.A tank is 1/3 full of water. Then water filling 2/7 of the tank is used. What fraction of the tank is full now? =
  37. 37.A tank is 7/10 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  38. 38.2/3 − 1/9 =
  39. 39.A bottle has 2/3 litre of juice. Riya drinks 2/9 litre. How much juice is left (in litres)? =
  40. 40.Meera has a ribbon 2/3 m long and cuts off 2/7 m. How long is the ribbon now (in m)? =

Answer key

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

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