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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 94 · 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 3/4 litre of juice. Diya drinks 3/10 litre. How much juice is left (in litres)? =
  2. 2.9/10 − 3/4 =
  3. 3.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? =
  4. 4.A tank is 1/2 full of water. Then water filling 2/9 of the tank is used. What fraction of the tank is full now? =
  5. 5.A bottle has 3/4 litre of juice. Arjun drinks 1/3 litre. How much juice is left (in litres)? =
  6. 6.A bottle has 3/5 litre of juice. Meera drinks 1/3 litre. How much juice is left (in litres)? =
  7. 7.5/9 − 1/3 =
  8. 8.7/9 − 1/3 =
  9. 9.2/3 − 1/5 =
  10. 10.2/5 − 1/10 =
  11. 11.A tank is 6/7 full of water. Then water filling 2/3 of the tank is used. What fraction of the tank is full now? =
  12. 12.3/4 − 4/7 =
  13. 13.5/9 − 1/6 =
  14. 14.A bottle has 5/7 litre of juice. Vihaan drinks 1/3 litre. How much juice is left (in litres)? =
  15. 15.A tank is 6/7 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  16. 16.2/5 − 1/6 =
  17. 17.2/3 − 5/8 =
  18. 18.1/3 − 2/7 =
  19. 19.Sara has a ribbon 4/5 m long and cuts off 3/4 m. How long is the ribbon now (in m)? =
  20. 20.5/6 − 2/9 =
  21. 21.A bottle has 3/4 litre of juice. Sara drinks 4/7 litre. How much juice is left (in litres)? =
  22. 22.2/3 − 1/6 =
  23. 23.Meera has a ribbon 5/6 m long and cuts off 3/8 m. How long is the ribbon now (in m)? =
  24. 24.4/7 − 1/3 =
  25. 25.Rohan has a ribbon 6/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  26. 26.A bottle has 7/8 litre of juice. Arjun drinks 5/6 litre. How much juice is left (in litres)? =
  27. 27.A tank is 3/10 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  28. 28.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? =
  29. 29.A tank is 5/7 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  30. 30.A tank is 7/8 full of water. Then water filling 2/3 of the tank is used. What fraction of the tank is full now? =
  31. 31.9/10 − 1/4 =
  32. 32.2/3 − 3/5 =
  33. 33.A bottle has 7/8 litre of juice. Aarav drinks 1/4 litre. How much juice is left (in litres)? =
  34. 34.3/4 − 1/5 =
  35. 35.2/3 − 4/7 =
  36. 36.9/10 − 1/2 =
  37. 37.3/4 − 3/5 =
  38. 38.4/5 − 1/6 =
  39. 39.A tank is 7/10 full of water. Then water filling 3/5 of the tank is used. What fraction of the tank is full now? =
  40. 40.Rohan has a ribbon 7/10 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =

Answer key

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

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