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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 768 · 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 8/9 litre of juice. Sara drinks 1/3 litre. How much juice is left (in litres)? =
  2. 2.A bottle has 7/10 litre of juice. Kabir drinks 2/3 litre. How much juice is left (in litres)? =
  3. 3.A tank is 8/9 full of water. Then water filling 2/3 of the tank is used. What fraction of the tank is full now? =
  4. 4.7/10 − 1/2 =
  5. 5.1/2 − 2/9 =
  6. 6.A bottle has 2/3 litre of juice. Aarav drinks 1/5 litre. How much juice is left (in litres)? =
  7. 7.2/9 − 1/6 =
  8. 8.4/5 − 1/4 =
  9. 9.A tank is 5/6 full of water. Then water filling 3/10 of the tank is used. What fraction of the tank is full now? =
  10. 10.4/9 − 1/3 =
  11. 11.1/6 − 1/9 =
  12. 12.A bottle has 5/6 litre of juice. Kabir drinks 1/5 litre. How much juice is left (in litres)? =
  13. 13.6/7 − 2/3 =
  14. 14.A tank is 5/6 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  15. 15.A bottle has 1/2 litre of juice. Kabir drinks 3/7 litre. How much juice is left (in litres)? =
  16. 16.7/8 − 1/2 =
  17. 17.A bottle has 5/9 litre of juice. Anaya drinks 1/6 litre. How much juice is left (in litres)? =
  18. 18.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? =
  19. 19.A bottle has 7/10 litre of juice. Aarav drinks 2/5 litre. How much juice is left (in litres)? =
  20. 20.A tank is 3/4 full of water. Then water filling 3/10 of the tank is used. What fraction of the tank is full now? =
  21. 21.A tank is 4/7 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  22. 22.2/3 − 1/4 =
  23. 23.A bottle has 5/6 litre of juice. Rohan drinks 1/10 litre. How much juice is left (in litres)? =
  24. 24.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? =
  25. 25.7/10 − 2/5 =
  26. 26.5/7 − 1/4 =
  27. 27.A bottle has 5/6 litre of juice. Arjun drinks 2/9 litre. How much juice is left (in litres)? =
  28. 28.A bottle has 2/5 litre of juice. Rohan drinks 1/3 litre. How much juice is left (in litres)? =
  29. 29.1/3 − 2/9 =
  30. 30.1/2 − 1/7 =
  31. 31.Rohan has a ribbon 7/8 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  32. 32.A tank is 7/8 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  33. 33.A bottle has 7/8 litre of juice. Diya drinks 1/4 litre. How much juice is left (in litres)? =
  34. 34.3/4 − 1/6 =
  35. 35.3/4 − 3/5 =
  36. 36.1/2 − 4/9 =
  37. 37.A tank is 5/9 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  38. 38.A tank is 4/5 full of water. Then water filling 7/10 of the tank is used. What fraction of the tank is full now? =
  39. 39.A bottle has 2/3 litre of juice. Diya drinks 3/5 litre. How much juice is left (in litres)? =
  40. 40.A tank is 3/4 full of water. Then water filling 2/5 of the tank is used. What fraction of the tank is full now? =

Answer key

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

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