← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 239 · 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. 1.2/3 − 2/9 =
  2. 2.A bottle has 1/4 litre of juice. Arjun drinks 1/5 litre. How much juice is left (in litres)? =
  3. 3.A tank is 4/5 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  4. 4.A bottle has 1/5 litre of juice. Riya drinks 1/6 litre. How much juice is left (in litres)? =
  5. 5.7/10 − 3/5 =
  6. 6.5/6 − 1/9 =
  7. 7.Diya has a ribbon 9/10 m long and cuts off 3/4 m. How long is the ribbon now (in m)? =
  8. 8.7/9 − 2/3 =
  9. 9.A tank is 7/8 full of water. Then water filling 5/6 of the tank is used. What fraction of the tank is full now? =
  10. 10.2/3 − 3/8 =
  11. 11.2/5 − 1/10 =
  12. 12.A bottle has 1/2 litre of juice. Arjun drinks 4/9 litre. How much juice is left (in litres)? =
  13. 13.A tank is 7/10 full of water. Then water filling 1/5 of the tank is used. What fraction of the tank is full now? =
  14. 14.3/4 − 1/8 =
  15. 15.7/9 − 1/2 =
  16. 16.5/6 − 1/3 =
  17. 17.3/5 − 3/10 =
  18. 18.A tank is 2/3 full of water. Then water filling 2/5 of the tank is used. What fraction of the tank is full now? =
  19. 19.7/8 − 1/3 =
  20. 20.A bottle has 3/4 litre of juice. Diya drinks 1/7 litre. How much juice is left (in litres)? =
  21. 21.8/9 − 1/3 =
  22. 22.2/3 − 5/8 =
  23. 23.1/3 − 1/5 =
  24. 24.1/2 − 3/7 =
  25. 25.Ishaan has a ribbon 7/8 m long and cuts off 5/6 m. How long is the ribbon now (in m)? =
  26. 26.Arjun has a ribbon 3/4 m long and cuts off 1/7 m. How long is the ribbon now (in m)? =
  27. 27.1/2 − 1/5 =
  28. 28.A bottle has 1/3 litre of juice. Ishaan drinks 2/7 litre. How much juice is left (in litres)? =
  29. 29.2/3 − 1/9 =
  30. 30.A bottle has 2/3 litre of juice. Aarav drinks 1/10 litre. How much juice is left (in litres)? =
  31. 31.Aarav has a ribbon 3/4 m long and cuts off 5/8 m. How long is the ribbon now (in m)? =
  32. 32.4/7 − 1/2 =
  33. 33.2/3 − 2/5 =
  34. 34.A bottle has 3/5 litre of juice. Aarav drinks 3/10 litre. How much juice is left (in litres)? =
  35. 35.2/3 − 4/9 =
  36. 36.3/4 − 5/7 =
  37. 37.1/2 − 2/5 =
  38. 38.A bottle has 4/5 litre of juice. Meera drinks 1/3 litre. How much juice is left (in litres)? =
  39. 39.A bottle has 3/10 litre of juice. Riya drinks 1/4 litre. How much juice is left (in litres)? =
  40. 40.1/2 − 3/8 =

Answer key

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

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