← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 132 · 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. Rohan drinks 2/7 litre. How much juice is left (in litres)? =
  2. 2.A bottle has 3/5 litre of juice. Aarav drinks 1/3 litre. How much juice is left (in litres)? =
  3. 3.Sara has a ribbon 3/4 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  4. 4.9/10 − 1/2 =
  5. 5.7/10 − 1/3 =
  6. 6.5/9 − 1/3 =
  7. 7.A tank is 5/8 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  8. 8.2/3 − 1/10 =
  9. 9.5/6 − 1/5 =
  10. 10.A bottle has 4/5 litre of juice. Meera drinks 1/6 litre. How much juice is left (in litres)? =
  11. 11.3/4 − 3/5 =
  12. 12.Tara has a ribbon 3/5 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  13. 13.7/8 − 1/6 =
  14. 14.3/5 − 1/2 =
  15. 15.A tank is 2/5 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  16. 16.2/3 − 1/9 =
  17. 17.3/4 − 4/7 =
  18. 18.Rohan has a ribbon 3/8 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  19. 19.3/4 − 1/5 =
  20. 20.1/2 − 1/6 =
  21. 21.A bottle has 4/7 litre of juice. Arjun drinks 1/4 litre. How much juice is left (in litres)? =
  22. 22.2/3 − 2/9 =
  23. 23.3/4 − 7/10 =
  24. 24.3/8 − 1/3 =
  25. 25.A bottle has 5/8 litre of juice. Rohan drinks 1/2 litre. How much juice is left (in litres)? =
  26. 26.Riya has a ribbon 3/4 m long and cuts off 2/7 m. How long is the ribbon now (in m)? =
  27. 27.A bottle has 8/9 litre of juice. Kabir drinks 1/2 litre. How much juice is left (in litres)? =
  28. 28.5/8 − 1/4 =
  29. 29.5/6 − 2/9 =
  30. 30.Meera has a ribbon 2/3 m long and cuts off 4/7 m. How long is the ribbon now (in m)? =
  31. 31.9/10 − 1/3 =
  32. 32.A bottle has 3/4 litre of juice. Diya drinks 3/10 litre. How much juice is left (in litres)? =
  33. 33.3/10 − 1/5 =
  34. 34.Arjun has a ribbon 7/8 m long and cuts off 5/6 m. How long is the ribbon now (in m)? =
  35. 35.A tank is 9/10 full of water. Then water filling 3/4 of the tank is used. What fraction of the tank is full now? =
  36. 36.5/6 − 7/10 =
  37. 37.1/2 − 1/4 =
  38. 38.A bottle has 1/6 litre of juice. Vihaan drinks 1/10 litre. How much juice is left (in litres)? =
  39. 39.A tank is 1/5 full of water. Then water filling 1/10 of the tank is used. What fraction of the tank is full now? =
  40. 40.Ishaan has a ribbon 5/7 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =

Answer key

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

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