← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 497 · 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. 1.7/8 − 1/4 =
  2. 2.1/2 − 3/8 =
  3. 3.A bottle has 7/8 litre of juice. Riya drinks 3/4 litre. How much juice is left (in litres)? =
  4. 4.A bottle has 4/9 litre of juice. Meera drinks 1/3 litre. How much juice is left (in litres)? =
  5. 5.2/3 − 3/10 =
  6. 6.A bottle has 6/7 litre of juice. Diya drinks 1/3 litre. How much juice is left (in litres)? =
  7. 7.9/10 − 1/5 =
  8. 8.Diya has a ribbon 1/3 m long and cuts off 2/9 m. How long is the ribbon now (in m)? =
  9. 9.A tank is 1/4 full of water. Then water filling 1/7 of the tank is used. What fraction of the tank is full now? =
  10. 10.Kabir has a ribbon 7/10 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  11. 11.A tank is 2/9 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  12. 12.1/6 − 1/10 =
  13. 13.A bottle has 8/9 litre of juice. Sara drinks 1/3 litre. How much juice is left (in litres)? =
  14. 14.7/8 − 2/3 =
  15. 15.Aarav has a ribbon 1/6 m long and cuts off 1/9 m. How long is the ribbon now (in m)? =
  16. 16.1/3 − 2/9 =
  17. 17.7/9 − 1/6 =
  18. 18.1/4 − 1/8 =
  19. 19.1/2 − 1/7 =
  20. 20.7/10 − 3/5 =
  21. 21.A tank is 1/2 full of water. Then water filling 3/10 of the tank is used. What fraction of the tank is full now? =
  22. 22.1/2 − 2/7 =
  23. 23.9/10 − 5/6 =
  24. 24.A tank is 4/5 full of water. Then water filling 3/4 of the tank is used. What fraction of the tank is full now? =
  25. 25.2/3 − 3/8 =
  26. 26.Sara has a ribbon 2/3 m long and cuts off 3/10 m. How long is the ribbon now (in m)? =
  27. 27.Kabir has a ribbon 1/4 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  28. 28.Rohan has a ribbon 7/8 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  29. 29.8/9 − 1/3 =
  30. 30.Rohan has a ribbon 5/6 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  31. 31.4/9 − 1/6 =
  32. 32.3/4 − 1/10 =
  33. 33.2/3 − 2/9 =
  34. 34.Kabir has a ribbon 4/5 m long and cuts off 7/10 m. How long is the ribbon now (in m)? =
  35. 35.3/4 − 3/5 =
  36. 36.Arjun has a ribbon 3/10 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  37. 37.A bottle has 2/3 litre of juice. Ishaan drinks 4/7 litre. How much juice is left (in litres)? =
  38. 38.3/4 − 2/7 =
  39. 39.A tank is 7/10 full of water. Then water filling 3/5 of the tank is used. What fraction of the tank is full now? =
  40. 40.1/5 − 1/10 =

Answer key

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

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