← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 129 · 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. Meera drinks 5/8 litre. How much juice is left (in litres)? =
  2. 2.1/2 − 1/7 =
  3. 3.A bottle has 1/6 litre of juice. Diya drinks 1/8 litre. How much juice is left (in litres)? =
  4. 4.1/3 − 1/9 =
  5. 5.A bottle has 7/8 litre of juice. Kabir drinks 1/2 litre. How much juice is left (in litres)? =
  6. 6.1/2 − 2/5 =
  7. 7.2/3 − 5/8 =
  8. 8.2/5 − 3/10 =
  9. 9.A tank is 1/2 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  10. 10.A bottle has 2/5 litre of juice. Arjun drinks 1/10 litre. How much juice is left (in litres)? =
  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 tank is 3/7 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  13. 13.3/10 − 1/5 =
  14. 14.A tank is 5/8 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  15. 15.A bottle has 3/8 litre of juice. Vihaan drinks 1/3 litre. How much juice is left (in litres)? =
  16. 16.8/9 − 2/3 =
  17. 17.1/2 − 2/9 =
  18. 18.5/9 − 1/3 =
  19. 19.2/5 − 1/4 =
  20. 20.5/6 − 3/8 =
  21. 21.3/4 − 1/10 =
  22. 22.3/8 − 1/6 =
  23. 23.A bottle has 7/10 litre of juice. Anaya drinks 2/5 litre. How much juice is left (in litres)? =
  24. 24.A bottle has 5/6 litre of juice. Riya drinks 7/9 litre. How much juice is left (in litres)? =
  25. 25.1/2 − 2/7 =
  26. 26.7/8 − 1/3 =
  27. 27.9/10 − 1/6 =
  28. 28.Ishaan has a ribbon 3/4 m long and cuts off 3/10 m. How long is the ribbon now (in m)? =
  29. 29.7/10 − 3/5 =
  30. 30.9/10 − 1/2 =
  31. 31.5/7 − 1/4 =
  32. 32.Kabir has a ribbon 3/10 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  33. 33.A bottle has 7/10 litre of juice. Tara drinks 2/5 litre. How much juice is left (in litres)? =
  34. 34.4/5 − 1/10 =
  35. 35.Rohan has a ribbon 3/4 m long and cuts off 4/7 m. How long is the ribbon now (in m)? =
  36. 36.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? =
  37. 37.A bottle has 2/3 litre of juice. Diya drinks 4/9 litre. How much juice is left (in litres)? =
  38. 38.3/4 − 1/5 =
  39. 39.A bottle has 6/7 litre of juice. Rohan drinks 1/4 litre. How much juice is left (in litres)? =
  40. 40.A bottle has 7/8 litre of juice. Anaya drinks 1/4 litre. How much juice is left (in litres)? =

Answer key

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

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