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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 832 · 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.Aarav has a ribbon 4/9 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  2. 2.5/9 − 1/3 =
  3. 3.7/10 − 2/5 =
  4. 4.8/9 − 1/2 =
  5. 5.A bottle has 5/6 litre of juice. Ishaan drinks 4/9 litre. How much juice is left (in litres)? =
  6. 6.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? =
  7. 7.Anaya has a ribbon 7/10 m long and cuts off 3/5 m. How long is the ribbon now (in m)? =
  8. 8.4/5 − 2/3 =
  9. 9.A tank is 1/4 full of water. Then water filling 1/5 of the tank is used. What fraction of the tank is full now? =
  10. 10.A tank is 1/2 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  11. 11.1/3 − 1/9 =
  12. 12.3/5 − 3/10 =
  13. 13.A bottle has 5/6 litre of juice. Ishaan drinks 1/9 litre. How much juice is left (in litres)? =
  14. 14.8/9 − 2/3 =
  15. 15.A tank is 2/3 full of water. Then water filling 5/8 of the tank is used. What fraction of the tank is full now? =
  16. 16.Diya has a ribbon 1/4 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  17. 17.7/8 − 1/6 =
  18. 18.A tank is 3/4 full of water. Then water filling 1/7 of the tank is used. What fraction of the tank is full now? =
  19. 19.A bottle has 1/4 litre of juice. Diya drinks 1/7 litre. How much juice is left (in litres)? =
  20. 20.A tank is 5/9 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  21. 21.A bottle has 3/4 litre of juice. Vihaan drinks 1/5 litre. How much juice is left (in litres)? =
  22. 22.2/3 − 3/8 =
  23. 23.1/3 − 1/5 =
  24. 24.2/3 − 2/9 =
  25. 25.5/6 − 5/8 =
  26. 26.5/8 − 1/2 =
  27. 27.A tank is 3/4 full of water. Then water filling 5/8 of the tank is used. What fraction of the tank is full now? =
  28. 28.Kabir has a ribbon 7/10 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  29. 29.6/7 − 1/3 =
  30. 30.5/9 − 1/2 =
  31. 31.A bottle has 5/6 litre of juice. Diya drinks 3/8 litre. How much juice is left (in litres)? =
  32. 32.2/3 − 1/5 =
  33. 33.A bottle has 3/4 litre of juice. Arjun drinks 5/7 litre. How much juice is left (in litres)? =
  34. 34.4/5 − 1/6 =
  35. 35.Tara has a ribbon 2/3 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  36. 36.A bottle has 5/6 litre of juice. Arjun drinks 1/8 litre. How much juice is left (in litres)? =
  37. 37.A bottle has 8/9 litre of juice. Tara drinks 1/3 litre. How much juice is left (in litres)? =
  38. 38.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? =
  39. 39.Vihaan has a ribbon 5/6 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  40. 40.A tank is 1/2 full of water. Then water filling 1/7 of the tank is used. What fraction of the tank is full now? =

Answer key

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

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