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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 961 · 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. 1.7/8 − 5/6 =
  2. 2.5/6 − 1/10 =
  3. 3.Meera has a ribbon 2/5 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  4. 4.1/2 − 1/8 =
  5. 5.5/6 − 2/5 =
  6. 6.A bottle has 5/6 litre of juice. Vihaan drinks 1/10 litre. How much juice is left (in litres)? =
  7. 7.2/3 − 4/7 =
  8. 8.2/3 − 3/7 =
  9. 9.2/3 − 1/6 =
  10. 10.3/4 − 1/6 =
  11. 11.A bottle has 5/6 litre of juice. Meera drinks 2/9 litre. How much juice is left (in litres)? =
  12. 12.A bottle has 3/4 litre of juice. Sara drinks 1/5 litre. How much juice is left (in litres)? =
  13. 13.A tank is 2/3 full of water. Then water filling 1/7 of the tank is used. What fraction of the tank is full now? =
  14. 14.4/5 − 1/10 =
  15. 15.A bottle has 2/3 litre of juice. Diya drinks 1/8 litre. How much juice is left (in litres)? =
  16. 16.3/4 − 5/7 =
  17. 17.9/10 − 2/5 =
  18. 18.6/7 − 1/3 =
  19. 19.1/3 − 1/10 =
  20. 20.2/3 − 1/9 =
  21. 21.5/6 − 1/3 =
  22. 22.3/5 − 1/3 =
  23. 23.A tank is 5/6 full of water. Then water filling 4/5 of the tank is used. What fraction of the tank is full now? =
  24. 24.3/4 − 3/8 =
  25. 25.Kabir has a ribbon 2/3 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  26. 26.A bottle has 7/8 litre of juice. Vihaan drinks 1/6 litre. How much juice is left (in litres)? =
  27. 27.2/3 − 5/9 =
  28. 28.A bottle has 5/6 litre of juice. Meera drinks 7/9 litre. How much juice is left (in litres)? =
  29. 29.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? =
  30. 30.2/3 − 1/4 =
  31. 31.2/9 − 1/6 =
  32. 32.2/3 − 5/8 =
  33. 33.3/4 − 1/5 =
  34. 34.2/3 − 3/8 =
  35. 35.Ishaan has a ribbon 5/6 m long and cuts off 4/5 m. How long is the ribbon now (in m)? =
  36. 36.8/9 − 1/3 =
  37. 37.5/9 − 1/2 =
  38. 38.A bottle has 3/4 litre of juice. Aarav drinks 1/8 litre. How much juice is left (in litres)? =
  39. 39.Rohan has a ribbon 4/7 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  40. 40.5/6 − 7/9 =

Answer key

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

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