← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 572 · 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.Tara has a ribbon 3/5 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  2. 2.Sara has a ribbon 9/10 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  3. 3.3/4 − 2/5 =
  4. 4.A tank is 3/4 full of water. Then water filling 3/7 of the tank is used. What fraction of the tank is full now? =
  5. 5.A bottle has 7/8 litre of juice. Meera drinks 2/3 litre. How much juice is left (in litres)? =
  6. 6.4/5 − 1/4 =
  7. 7.Diya has a ribbon 3/5 m long and cuts off 3/10 m. How long is the ribbon now (in m)? =
  8. 8.A bottle has 1/2 litre of juice. Vihaan drinks 1/9 litre. How much juice is left (in litres)? =
  9. 9.3/8 − 1/4 =
  10. 10.5/6 − 5/9 =
  11. 11.5/7 − 1/3 =
  12. 12.Vihaan has a ribbon 2/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  13. 13.2/3 − 3/5 =
  14. 14.A bottle has 2/5 litre of juice. Diya drinks 3/10 litre. How much juice is left (in litres)? =
  15. 15.Ishaan has a ribbon 5/6 m long and cuts off 3/4 m. How long is the ribbon now (in m)? =
  16. 16.A tank is 9/10 full of water. Then water filling 4/5 of the tank is used. What fraction of the tank is full now? =
  17. 17.6/7 − 1/4 =
  18. 18.1/5 − 1/6 =
  19. 19.2/3 − 1/7 =
  20. 20.4/7 − 1/4 =
  21. 21.1/2 − 3/7 =
  22. 22.5/6 − 2/9 =
  23. 23.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? =
  24. 24.A bottle has 3/5 litre of juice. Vihaan drinks 1/3 litre. How much juice is left (in litres)? =
  25. 25.5/6 − 1/2 =
  26. 26.9/10 − 4/5 =
  27. 27.Kabir has a ribbon 6/7 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  28. 28.4/5 − 1/10 =
  29. 29.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? =
  30. 30.9/10 − 1/2 =
  31. 31.5/6 − 7/10 =
  32. 32.4/5 − 3/10 =
  33. 33.8/9 − 5/6 =
  34. 34.A tank is 9/10 full of water. Then water filling 2/5 of the tank is used. What fraction of the tank is full now? =
  35. 35.3/5 − 1/2 =
  36. 36.A tank is 5/7 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  37. 37.1/3 − 1/5 =
  38. 38.2/3 − 3/8 =
  39. 39.Ishaan has a ribbon 1/5 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  40. 40.5/6 − 3/8 =

Answer key

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

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