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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 608 · 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 1/3 litre of juice. Riya drinks 1/9 litre. How much juice is left (in litres)? =
  2. 2.A bottle has 6/7 litre of juice. Sara drinks 3/4 litre. How much juice is left (in litres)? =
  3. 3.A tank is 9/10 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  4. 4.1/2 − 1/7 =
  5. 5.2/9 − 1/6 =
  6. 6.6/7 − 2/3 =
  7. 7.A tank is 3/8 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  8. 8.Kabir has a ribbon 5/6 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  9. 9.4/7 − 1/2 =
  10. 10.2/3 − 1/10 =
  11. 11.9/10 − 3/4 =
  12. 12.A bottle has 2/3 litre of juice. Ishaan drinks 2/9 litre. How much juice is left (in litres)? =
  13. 13.1/3 − 1/7 =
  14. 14.Anaya has a ribbon 1/5 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  15. 15.A bottle has 7/9 litre of juice. Riya drinks 2/3 litre. How much juice is left (in litres)? =
  16. 16.1/2 − 1/8 =
  17. 17.A bottle has 1/6 litre of juice. Vihaan drinks 1/9 litre. How much juice is left (in litres)? =
  18. 18.1/2 − 1/9 =
  19. 19.3/7 − 1/4 =
  20. 20.A bottle has 4/7 litre of juice. Riya drinks 1/2 litre. How much juice is left (in litres)? =
  21. 21.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? =
  22. 22.A bottle has 5/6 litre of juice. Kabir drinks 1/9 litre. How much juice is left (in litres)? =
  23. 23.2/5 − 3/10 =
  24. 24.3/8 − 1/6 =
  25. 25.A bottle has 1/5 litre of juice. Ishaan drinks 1/10 litre. How much juice is left (in litres)? =
  26. 26.A tank is 2/3 full of water. Then water filling 3/5 of the tank is used. What fraction of the tank is full now? =
  27. 27.A bottle has 3/4 litre of juice. Meera drinks 2/5 litre. How much juice is left (in litres)? =
  28. 28.A bottle has 2/3 litre of juice. Ishaan drinks 5/8 litre. How much juice is left (in litres)? =
  29. 29.A tank is 7/10 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  30. 30.5/6 − 1/2 =
  31. 31.7/8 − 1/4 =
  32. 32.5/6 − 1/9 =
  33. 33.1/3 − 1/9 =
  34. 34.Vihaan has a ribbon 1/6 m long and cuts off 1/8 m. How long is the ribbon now (in m)? =
  35. 35.A bottle has 8/9 litre of juice. Diya drinks 1/2 litre. How much juice is left (in litres)? =
  36. 36.Sara has a ribbon 2/3 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  37. 37.5/6 − 4/5 =
  38. 38.A bottle has 3/5 litre of juice. Arjun drinks 1/2 litre. How much juice is left (in litres)? =
  39. 39.A bottle has 1/2 litre of juice. Arjun drinks 1/7 litre. How much juice is left (in litres)? =
  40. 40.A bottle has 9/10 litre of juice. Arjun drinks 4/5 litre. How much juice is left (in litres)? =

Answer key

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

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