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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 131 · 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 9/10 litre of juice. Diya drinks 2/3 litre. How much juice is left (in litres)? =
  2. 2.1/3 − 2/9 =
  3. 3.A bottle has 5/6 litre of juice. Kabir drinks 3/8 litre. How much juice is left (in litres)? =
  4. 4.Sara has a ribbon 8/9 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  5. 5.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? =
  6. 6.8/9 − 2/3 =
  7. 7.3/8 − 1/4 =
  8. 8.3/4 − 1/7 =
  9. 9.A bottle has 3/7 litre of juice. Arjun drinks 1/3 litre. How much juice is left (in litres)? =
  10. 10.5/6 − 3/8 =
  11. 11.2/5 − 1/10 =
  12. 12.Arjun has a ribbon 9/10 m long and cuts off 4/5 m. How long is the ribbon now (in m)? =
  13. 13.Diya has a ribbon 5/8 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  14. 14.A bottle has 2/3 litre of juice. Rohan drinks 2/5 litre. How much juice is left (in litres)? =
  15. 15.5/6 − 4/9 =
  16. 16.5/6 − 7/9 =
  17. 17.1/6 − 1/8 =
  18. 18.A bottle has 8/9 litre of juice. Anaya drinks 1/2 litre. How much juice is left (in litres)? =
  19. 19.1/2 − 1/8 =
  20. 20.5/7 − 1/2 =
  21. 21.A tank is 7/8 full of water. Then water filling 3/4 of the tank is used. What fraction of the tank is full now? =
  22. 22.7/10 − 1/2 =
  23. 23.5/7 − 1/3 =
  24. 24.1/3 − 1/6 =
  25. 25.Sara has a ribbon 4/5 m long and cuts off 3/10 m. How long is the ribbon now (in m)? =
  26. 26.7/9 − 2/3 =
  27. 27.Tara has a ribbon 2/3 m long and cuts off 5/8 m. How long is the ribbon now (in m)? =
  28. 28.A bottle has 4/5 litre of juice. Aarav drinks 3/10 litre. How much juice is left (in litres)? =
  29. 29.1/2 − 4/9 =
  30. 30.2/5 − 1/4 =
  31. 31.4/5 − 1/6 =
  32. 32.1/2 − 1/5 =
  33. 33.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? =
  34. 34.A bottle has 3/4 litre of juice. Riya drinks 7/10 litre. How much juice is left (in litres)? =
  35. 35.3/4 − 3/8 =
  36. 36.1/3 − 1/7 =
  37. 37.2/5 − 3/10 =
  38. 38.4/5 − 7/10 =
  39. 39.9/10 − 1/6 =
  40. 40.A bottle has 1/5 litre of juice. Diya drinks 1/6 litre. How much juice is left (in litres)? =

Answer key

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

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