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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 585 · 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. 1.2/3 − 4/9 =
  2. 2.3/4 − 2/7 =
  3. 3.3/4 − 4/7 =
  4. 4.Aarav has a ribbon 4/9 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  5. 5.A bottle has 7/9 litre of juice. Riya drinks 1/2 litre. How much juice is left (in litres)? =
  6. 6.5/9 − 1/3 =
  7. 7.A tank is 3/4 full of water. Then water filling 4/7 of the tank is used. What fraction of the tank is full now? =
  8. 8.Arjun has a ribbon 2/3 m long and cuts off 2/7 m. How long is the ribbon now (in m)? =
  9. 9.3/8 − 1/4 =
  10. 10.A tank is 3/4 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  11. 11.Sara has a ribbon 7/8 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  12. 12.2/3 − 1/2 =
  13. 13.5/8 − 1/6 =
  14. 14.Sara has a ribbon 3/10 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  15. 15.1/3 − 1/7 =
  16. 16.5/6 − 1/5 =
  17. 17.4/5 − 1/3 =
  18. 18.A bottle has 1/2 litre of juice. Rohan drinks 1/6 litre. How much juice is left (in litres)? =
  19. 19.5/7 − 1/4 =
  20. 20.A bottle has 1/4 litre of juice. Meera drinks 1/8 litre. How much juice is left (in litres)? =
  21. 21.9/10 − 2/3 =
  22. 22.2/5 − 1/3 =
  23. 23.3/5 − 1/10 =
  24. 24.5/6 − 4/9 =
  25. 25.Aarav has a ribbon 2/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  26. 26.A bottle has 7/9 litre of juice. Diya drinks 2/3 litre. How much juice is left (in litres)? =
  27. 27.3/7 − 1/3 =
  28. 28.Tara has a ribbon 3/4 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  29. 29.1/2 − 3/8 =
  30. 30.Anaya has a ribbon 5/8 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  31. 31.A bottle has 7/9 litre of juice. Rohan drinks 1/3 litre. How much juice is left (in litres)? =
  32. 32.2/5 − 1/10 =
  33. 33.A bottle has 2/3 litre of juice. Meera drinks 1/2 litre. How much juice is left (in litres)? =
  34. 34.3/4 − 3/5 =
  35. 35.1/5 − 1/6 =
  36. 36.3/10 − 1/5 =
  37. 37.Tara has a ribbon 2/5 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  38. 38.6/7 − 1/2 =
  39. 39.Aarav has a ribbon 4/5 m long and cuts off 3/4 m. How long is the ribbon now (in m)? =
  40. 40.A bottle has 1/2 litre of juice. Meera drinks 3/7 litre. How much juice is left (in litres)? =

Answer key

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

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