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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 564 · 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 tank is 9/10 full of water. Then water filling 2/3 of the tank is used. What fraction of the tank is full now? =
  2. 2.8/9 − 5/6 =
  3. 3.A bottle has 2/3 litre of juice. Diya drinks 1/8 litre. How much juice is left (in litres)? =
  4. 4.3/5 − 1/6 =
  5. 5.2/3 − 2/5 =
  6. 6.5/6 − 2/3 =
  7. 7.A bottle has 8/9 litre of juice. Riya drinks 1/3 litre. How much juice is left (in litres)? =
  8. 8.A bottle has 3/4 litre of juice. Aarav drinks 3/5 litre. How much juice is left (in litres)? =
  9. 9.A bottle has 2/9 litre of juice. Anaya drinks 1/6 litre. How much juice is left (in litres)? =
  10. 10.2/3 − 1/7 =
  11. 11.7/9 − 2/3 =
  12. 12.A tank is 9/10 full of water. Then water filling 4/5 of the tank is used. What fraction of the tank is full now? =
  13. 13.5/6 − 4/9 =
  14. 14.4/5 − 1/4 =
  15. 15.4/9 − 1/3 =
  16. 16.5/9 − 1/3 =
  17. 17.A bottle has 7/8 litre of juice. Rohan drinks 1/3 litre. How much juice is left (in litres)? =
  18. 18.2/3 − 3/7 =
  19. 19.5/6 − 7/9 =
  20. 20.7/10 − 3/5 =
  21. 21.A bottle has 2/3 litre of juice. Tara drinks 2/5 litre. How much juice is left (in litres)? =
  22. 22.A bottle has 4/5 litre of juice. Arjun drinks 1/2 litre. How much juice is left (in litres)? =
  23. 23.6/7 − 3/4 =
  24. 24.1/2 − 1/5 =
  25. 25.4/5 − 2/3 =
  26. 26.A bottle has 5/6 litre of juice. Rohan drinks 1/5 litre. How much juice is left (in litres)? =
  27. 27.3/4 − 4/7 =
  28. 28.2/3 − 3/10 =
  29. 29.A bottle has 3/8 litre of juice. Diya drinks 1/4 litre. How much juice is left (in litres)? =
  30. 30.A bottle has 1/3 litre of juice. Ishaan drinks 1/7 litre. How much juice is left (in litres)? =
  31. 31.1/5 − 1/10 =
  32. 32.A tank is 5/6 full of water. Then water filling 2/5 of the tank is used. What fraction of the tank is full now? =
  33. 33.4/9 − 1/6 =
  34. 34.A tank is 1/6 full of water. Then water filling 1/8 of the tank is used. What fraction of the tank is full now? =
  35. 35.A bottle has 7/10 litre of juice. Vihaan drinks 3/5 litre. How much juice is left (in litres)? =
  36. 36.3/4 − 3/5 =
  37. 37.A tank is 5/7 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  38. 38.A tank is 1/5 full of water. Then water filling 1/10 of the tank is used. What fraction of the tank is full now? =
  39. 39.1/2 − 2/7 =
  40. 40.A bottle has 1/2 litre of juice. Riya drinks 3/7 litre. How much juice is left (in litres)? =

Answer key

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

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