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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 704 · 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. 1.2/5 − 3/10 =
  2. 2.2/3 − 2/9 =
  3. 3.A bottle has 5/6 litre of juice. Ishaan drinks 2/5 litre. How much juice is left (in litres)? =
  4. 4.3/5 − 1/3 =
  5. 5.Meera has a ribbon 4/7 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  6. 6.2/3 − 4/7 =
  7. 7.A bottle has 1/2 litre of juice. Aarav drinks 1/9 litre. How much juice is left (in litres)? =
  8. 8.1/2 − 2/9 =
  9. 9.7/8 − 1/6 =
  10. 10.Ishaan has a ribbon 7/8 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  11. 11.A bottle has 5/6 litre of juice. Diya drinks 1/8 litre. How much juice is left (in litres)? =
  12. 12.5/7 − 1/2 =
  13. 13.Sara has a ribbon 7/8 m long and cuts off 3/4 m. How long is the ribbon now (in m)? =
  14. 14.Kabir has a ribbon 3/8 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  15. 15.A tank is 1/2 full of water. Then water filling 1/8 of the tank is used. What fraction of the tank is full now? =
  16. 16.Meera has a ribbon 7/8 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  17. 17.4/5 − 1/6 =
  18. 18.5/7 − 1/4 =
  19. 19.Vihaan has a ribbon 7/10 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  20. 20.9/10 − 1/3 =
  21. 21.2/3 − 1/5 =
  22. 22.2/3 − 4/9 =
  23. 23.9/10 − 4/5 =
  24. 24.Aarav has a ribbon 3/5 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  25. 25.3/5 − 1/4 =
  26. 26.Kabir has a ribbon 2/5 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  27. 27.5/6 − 1/4 =
  28. 28.8/9 − 1/2 =
  29. 29.A tank is 5/6 full of water. Then water filling 3/4 of the tank is used. What fraction of the tank is full now? =
  30. 30.3/4 − 3/7 =
  31. 31.1/3 − 1/7 =
  32. 32.A bottle has 2/5 litre of juice. Sara drinks 1/3 litre. How much juice is left (in litres)? =
  33. 33.2/3 − 3/8 =
  34. 34.A tank is 1/2 full of water. Then water filling 1/10 of the tank is used. What fraction of the tank is full now? =
  35. 35.A tank is 1/4 full of water. Then water filling 1/10 of the tank is used. What fraction of the tank is full now? =
  36. 36.2/3 − 1/4 =
  37. 37.A bottle has 7/9 litre of juice. Vihaan drinks 1/3 litre. How much juice is left (in litres)? =
  38. 38.4/5 − 3/4 =
  39. 39.A bottle has 2/3 litre of juice. Ishaan drinks 1/6 litre. How much juice is left (in litres)? =
  40. 40.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? =

Answer key

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

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