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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 353 · 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 2/5 litre of juice. Anaya drinks 1/6 litre. How much juice is left (in litres)? =
  2. 2.7/8 − 3/4 =
  3. 3.4/9 − 1/3 =
  4. 4.4/5 − 7/10 =
  5. 5.1/2 − 1/8 =
  6. 6.7/9 − 2/3 =
  7. 7.Arjun has a ribbon 2/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  8. 8.5/9 − 1/3 =
  9. 9.5/8 − 1/2 =
  10. 10.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? =
  11. 11.A tank is 4/5 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  12. 12.Kabir has a ribbon 1/2 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  13. 13.5/6 − 3/8 =
  14. 14.Sara has a ribbon 5/6 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  15. 15.A bottle has 2/3 litre of juice. Ishaan drinks 3/10 litre. How much juice is left (in litres)? =
  16. 16.Rohan has a ribbon 9/10 m long and cuts off 4/5 m. How long is the ribbon now (in m)? =
  17. 17.Rohan has a ribbon 1/2 m long and cuts off 1/8 m. How long is the ribbon now (in m)? =
  18. 18.A bottle has 5/6 litre of juice. Vihaan drinks 1/5 litre. How much juice is left (in litres)? =
  19. 19.A bottle has 7/10 litre of juice. Kabir drinks 1/5 litre. How much juice is left (in litres)? =
  20. 20.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? =
  21. 21.Ishaan has a ribbon 2/3 m long and cuts off 3/8 m. How long is the ribbon now (in m)? =
  22. 22.9/10 − 2/5 =
  23. 23.2/5 − 1/10 =
  24. 24.9/10 − 3/4 =
  25. 25.3/5 − 1/6 =
  26. 26.Meera has a ribbon 1/4 m long and cuts off 1/7 m. How long is the ribbon now (in m)? =
  27. 27.7/10 − 2/5 =
  28. 28.5/6 − 2/3 =
  29. 29.A bottle has 8/9 litre of juice. Tara drinks 1/6 litre. How much juice is left (in litres)? =
  30. 30.1/2 − 3/8 =
  31. 31.A bottle has 9/10 litre of juice. Riya drinks 5/6 litre. How much juice is left (in litres)? =
  32. 32.Ishaan has a ribbon 6/7 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  33. 33.A bottle has 7/9 litre of juice. Kabir drinks 1/3 litre. How much juice is left (in litres)? =
  34. 34.6/7 − 1/2 =
  35. 35.1/5 − 1/6 =
  36. 36.Anaya has a ribbon 1/2 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  37. 37.5/6 − 7/9 =
  38. 38.5/7 − 1/4 =
  39. 39.A bottle has 5/6 litre of juice. Kabir drinks 2/9 litre. How much juice is left (in litres)? =
  40. 40.8/9 − 1/2 =

Answer key

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

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