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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 357 · 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. 1.7/10 − 2/5 =
  2. 2.A bottle has 2/3 litre of juice. Vihaan drinks 4/9 litre. How much juice is left (in litres)? =
  3. 3.1/3 − 3/10 =
  4. 4.A tank is 5/6 full of water. Then water filling 4/9 of the tank is used. What fraction of the tank is full now? =
  5. 5.A bottle has 6/7 litre of juice. Sara drinks 1/4 litre. How much juice is left (in litres)? =
  6. 6.A bottle has 3/4 litre of juice. Vihaan drinks 5/8 litre. How much juice is left (in litres)? =
  7. 7.2/3 − 1/5 =
  8. 8.Diya has a ribbon 2/5 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  9. 9.A bottle has 5/9 litre of juice. Vihaan drinks 1/6 litre. How much juice is left (in litres)? =
  10. 10.5/6 − 3/8 =
  11. 11.A bottle has 1/2 litre of juice. Sara drinks 3/8 litre. How much juice is left (in litres)? =
  12. 12.1/2 − 1/3 =
  13. 13.9/10 − 2/5 =
  14. 14.A tank is 7/10 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  15. 15.A tank is 8/9 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  16. 16.9/10 − 1/5 =
  17. 17.A tank is 7/9 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  18. 18.Tara has a ribbon 1/4 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  19. 19.Meera has a ribbon 3/10 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  20. 20.A tank is 5/8 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  21. 21.3/5 − 1/3 =
  22. 22.A bottle has 3/5 litre of juice. Anaya drinks 3/10 litre. How much juice is left (in litres)? =
  23. 23.1/3 − 2/7 =
  24. 24.A tank is 4/5 full of water. Then water filling 2/3 of the tank is used. What fraction of the tank is full now? =
  25. 25.5/7 − 1/3 =
  26. 26.Arjun has a ribbon 2/5 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  27. 27.A bottle has 5/7 litre of juice. Sara drinks 1/4 litre. How much juice is left (in litres)? =
  28. 28.3/8 − 1/4 =
  29. 29.2/3 − 4/9 =
  30. 30.A tank is 3/5 full of water. Then water filling 3/10 of the tank is used. What fraction of the tank is full now? =
  31. 31.6/7 − 1/3 =
  32. 32.A tank is 3/4 full of water. Then water filling 2/3 of the tank is used. What fraction of the tank is full now? =
  33. 33.5/8 − 1/3 =
  34. 34.A tank is 3/4 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  35. 35.A tank is 5/7 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  36. 36.A bottle has 4/5 litre of juice. Aarav drinks 1/3 litre. How much juice is left (in litres)? =
  37. 37.Ishaan has a ribbon 5/6 m long and cuts off 5/9 m. How long is the ribbon now (in m)? =
  38. 38.8/9 − 1/2 =
  39. 39.Ishaan has a ribbon 3/4 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  40. 40.7/9 − 2/3 =

Answer key

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

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