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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 518 · 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 3/10 litre of juice. Ishaan drinks 1/4 litre. How much juice is left (in litres)? =
  2. 2.1/3 − 1/8 =
  3. 3.3/8 − 1/4 =
  4. 4.A bottle has 2/3 litre of juice. Riya drinks 5/9 litre. How much juice is left (in litres)? =
  5. 5.Meera has a ribbon 6/7 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  6. 6.A bottle has 1/2 litre of juice. Riya drinks 2/7 litre. How much juice is left (in litres)? =
  7. 7.A bottle has 2/5 litre of juice. Rohan drinks 1/10 litre. How much juice is left (in litres)? =
  8. 8.A tank is 7/8 full of water. Then water filling 3/4 of the tank is used. What fraction of the tank is full now? =
  9. 9.5/9 − 1/2 =
  10. 10.7/8 − 2/3 =
  11. 11.2/5 − 3/10 =
  12. 12.Aarav has a ribbon 2/3 m long and cuts off 2/7 m. How long is the ribbon now (in m)? =
  13. 13.Aarav has a ribbon 7/8 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  14. 14.7/9 − 1/3 =
  15. 15.A bottle has 2/3 litre of juice. Vihaan drinks 3/10 litre. How much juice is left (in litres)? =
  16. 16.5/6 − 3/8 =
  17. 17.Kabir has a ribbon 2/5 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  18. 18.A bottle has 5/6 litre of juice. Kabir drinks 7/9 litre. How much juice is left (in litres)? =
  19. 19.5/6 − 1/10 =
  20. 20.A bottle has 4/5 litre of juice. Meera drinks 1/10 litre. How much juice is left (in litres)? =
  21. 21.6/7 − 1/2 =
  22. 22.9/10 − 1/3 =
  23. 23.2/3 − 1/8 =
  24. 24.7/10 − 1/5 =
  25. 25.2/3 − 1/2 =
  26. 26.A bottle has 5/8 litre of juice. Ishaan drinks 1/3 litre. How much juice is left (in litres)? =
  27. 27.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? =
  28. 28.A bottle has 3/10 litre of juice. Rohan drinks 1/5 litre. How much juice is left (in litres)? =
  29. 29.5/9 − 1/3 =
  30. 30.7/10 − 2/5 =
  31. 31.Rohan has a ribbon 3/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  32. 32.A tank is 2/5 full of water. Then water filling 3/10 of the tank is used. What fraction of the tank is full now? =
  33. 33.A bottle has 1/3 litre of juice. Arjun drinks 2/7 litre. How much juice is left (in litres)? =
  34. 34.8/9 − 1/2 =
  35. 35.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? =
  36. 36.A bottle has 1/2 litre of juice. Meera drinks 1/5 litre. How much juice is left (in litres)? =
  37. 37.6/7 − 1/4 =
  38. 38.Tara has a ribbon 5/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  39. 39.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? =
  40. 40.3/5 − 1/10 =

Answer key

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

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