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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 274 · 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.Arjun has a ribbon 6/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  2. 2.3/4 − 5/8 =
  3. 3.A bottle has 2/3 litre of juice. Riya drinks 2/7 litre. How much juice is left (in litres)? =
  4. 4.3/5 − 1/10 =
  5. 5.5/9 − 1/3 =
  6. 6.2/3 − 3/8 =
  7. 7.A bottle has 5/6 litre of juice. Arjun drinks 1/3 litre. How much juice is left (in litres)? =
  8. 8.4/5 − 3/4 =
  9. 9.A tank is 3/7 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  10. 10.Arjun has a ribbon 5/6 m long and cuts off 4/5 m. How long is the ribbon now (in m)? =
  11. 11.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? =
  12. 12.2/3 − 4/7 =
  13. 13.A bottle has 3/4 litre of juice. Diya drinks 3/7 litre. How much juice is left (in litres)? =
  14. 14.3/5 − 1/2 =
  15. 15.A tank is 4/5 full of water. Then water filling 1/4 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 3/4 m. How long is the ribbon now (in m)? =
  17. 17.A bottle has 3/4 litre of juice. Ishaan drinks 5/8 litre. How much juice is left (in litres)? =
  18. 18.2/3 − 1/7 =
  19. 19.7/10 − 2/3 =
  20. 20.Kabir has a ribbon 2/3 m long and cuts off 4/9 m. How long is the ribbon now (in m)? =
  21. 21.A tank is 2/3 full of water. Then water filling 2/5 of the tank is used. What fraction of the tank is full now? =
  22. 22.4/5 − 1/4 =
  23. 23.A bottle has 2/9 litre of juice. Arjun drinks 1/6 litre. How much juice is left (in litres)? =
  24. 24.3/10 − 1/5 =
  25. 25.A bottle has 2/3 litre of juice. Rohan drinks 3/10 litre. How much juice is left (in litres)? =
  26. 26.5/8 − 1/4 =
  27. 27.7/10 − 1/5 =
  28. 28.A bottle has 3/5 litre of juice. Vihaan drinks 1/4 litre. How much juice is left (in litres)? =
  29. 29.Kabir has a ribbon 4/7 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  30. 30.5/6 − 5/9 =
  31. 31.A bottle has 2/5 litre of juice. Anaya drinks 1/4 litre. How much juice is left (in litres)? =
  32. 32.3/4 − 3/10 =
  33. 33.7/10 − 1/3 =
  34. 34.A bottle has 6/7 litre of juice. Kabir drinks 1/4 litre. How much juice is left (in litres)? =
  35. 35.7/8 − 5/6 =
  36. 36.3/4 − 1/5 =
  37. 37.A bottle has 4/5 litre of juice. Diya drinks 1/4 litre. How much juice is left (in litres)? =
  38. 38.1/2 − 4/9 =
  39. 39.2/5 − 3/10 =
  40. 40.6/7 − 3/4 =

Answer key

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

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