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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 294 · 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.Sara has a ribbon 7/8 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  2. 2.A bottle has 2/5 litre of juice. Anaya drinks 1/3 litre. How much juice is left (in litres)? =
  3. 3.Anaya has a ribbon 4/9 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  4. 4.Sara has a ribbon 4/5 m long and cuts off 7/10 m. How long is the ribbon now (in m)? =
  5. 5.5/6 − 1/10 =
  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. 7.2/3 − 1/8 =
  8. 8.A tank is 3/5 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  9. 9.Sara has a ribbon 8/9 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  10. 10.A bottle has 5/7 litre of juice. Meera drinks 2/3 litre. How much juice is left (in litres)? =
  11. 11.5/6 − 3/8 =
  12. 12.A tank is 1/3 full of water. Then water filling 2/9 of the tank is used. What fraction of the tank is full now? =
  13. 13.7/10 − 1/6 =
  14. 14.Arjun has a ribbon 8/9 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  15. 15.7/9 − 1/2 =
  16. 16.A bottle has 4/7 litre of juice. Arjun drinks 1/4 litre. How much juice is left (in litres)? =
  17. 17.A bottle has 6/7 litre of juice. Meera drinks 1/4 litre. How much juice is left (in litres)? =
  18. 18.5/7 − 2/3 =
  19. 19.Tara has a ribbon 1/2 m long and cuts off 3/10 m. How long is the ribbon now (in m)? =
  20. 20.9/10 − 3/5 =
  21. 21.7/8 − 1/2 =
  22. 22.A bottle has 4/5 litre of juice. Tara drinks 7/10 litre. How much juice is left (in litres)? =
  23. 23.2/3 − 1/10 =
  24. 24.5/7 − 1/4 =
  25. 25.7/10 − 1/3 =
  26. 26.4/7 − 1/4 =
  27. 27.1/3 − 2/7 =
  28. 28.A tank is 1/3 full of water. Then water filling 1/5 of the tank is used. What fraction of the tank is full now? =
  29. 29.A bottle has 5/6 litre of juice. Vihaan drinks 3/8 litre. How much juice is left (in litres)? =
  30. 30.6/7 − 2/3 =
  31. 31.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? =
  32. 32.5/8 − 1/6 =
  33. 33.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? =
  34. 34.7/8 − 5/6 =
  35. 35.3/4 − 1/10 =
  36. 36.Anaya has a ribbon 5/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  37. 37.A bottle has 4/9 litre of juice. Meera drinks 1/3 litre. How much juice is left (in litres)? =
  38. 38.A tank is 3/4 full of water. Then water filling 1/5 of the tank is used. What fraction of the tank is full now? =
  39. 39.8/9 − 1/6 =
  40. 40.A tank is 2/3 full of water. Then water filling 1/5 of the tank is used. What fraction of the tank is full now? =

Answer key

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

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