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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 762 · 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.Diya has a ribbon 5/6 m long and cuts off 3/5 m. How long is the ribbon now (in m)? =
  2. 2.3/5 − 1/2 =
  3. 3.7/10 − 1/5 =
  4. 4.A tank is 3/4 full of water. Then water filling 4/7 of the tank is used. What fraction of the tank is full now? =
  5. 5.6/7 − 1/4 =
  6. 6.A bottle has 1/5 litre of juice. Vihaan drinks 1/6 litre. How much juice is left (in litres)? =
  7. 7.A tank is 9/10 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  8. 8.A bottle has 6/7 litre of juice. Tara drinks 1/4 litre. How much juice is left (in litres)? =
  9. 9.A tank is 2/3 full of water. Then water filling 1/5 of the tank is used. What fraction of the tank is full now? =
  10. 10.3/4 − 2/7 =
  11. 11.A tank is 3/8 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  12. 12.A tank is 7/9 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  13. 13.4/5 − 7/10 =
  14. 14.A tank is 2/3 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  15. 15.5/6 − 7/10 =
  16. 16.A bottle has 4/5 litre of juice. Aarav drinks 7/10 litre. How much juice is left (in litres)? =
  17. 17.Riya has a ribbon 3/8 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  18. 18.Meera has a ribbon 1/3 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  19. 19.5/7 − 1/2 =
  20. 20.8/9 − 2/3 =
  21. 21.Aarav has a ribbon 3/5 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  22. 22.A bottle has 5/9 litre of juice. Riya drinks 1/3 litre. How much juice is left (in litres)? =
  23. 23.3/7 − 1/3 =
  24. 24.7/10 − 1/3 =
  25. 25.1/2 − 4/9 =
  26. 26.5/6 − 4/9 =
  27. 27.5/6 − 2/9 =
  28. 28.1/3 − 2/9 =
  29. 29.Aarav has a ribbon 3/5 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  30. 30.7/10 − 2/5 =
  31. 31.Meera has a ribbon 2/3 m long and cuts off 4/9 m. How long is the ribbon now (in m)? =
  32. 32.A bottle has 7/8 litre of juice. Sara drinks 3/4 litre. How much juice is left (in litres)? =
  33. 33.5/9 − 1/3 =
  34. 34.3/5 − 1/4 =
  35. 35.Ishaan has a ribbon 5/6 m long and cuts off 2/9 m. How long is the ribbon now (in m)? =
  36. 36.5/9 − 1/2 =
  37. 37.8/9 − 1/6 =
  38. 38.A bottle has 9/10 litre of juice. Tara drinks 3/5 litre. How much juice is left (in litres)? =
  39. 39.Meera has a ribbon 5/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  40. 40.A bottle has 3/8 litre of juice. Aarav drinks 1/3 litre. How much juice is left (in litres)? =

Answer key

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

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