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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 589 · 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 6/7 litre of juice. Meera drinks 3/4 litre. How much juice is left (in litres)? =
  2. 2.A bottle has 3/7 litre of juice. Ishaan drinks 1/3 litre. How much juice is left (in litres)? =
  3. 3.4/7 − 1/2 =
  4. 4.A bottle has 7/8 litre of juice. Riya drinks 1/3 litre. How much juice is left (in litres)? =
  5. 5.Anaya has a ribbon 4/5 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  6. 6.2/3 − 1/5 =
  7. 7.Diya has a ribbon 4/5 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  8. 8.Kabir has a ribbon 2/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  9. 9.3/5 − 3/10 =
  10. 10.A bottle has 5/6 litre of juice. Tara drinks 4/9 litre. How much juice is left (in litres)? =
  11. 11.3/4 − 3/5 =
  12. 12.A bottle has 7/10 litre of juice. Meera drinks 2/5 litre. How much juice is left (in litres)? =
  13. 13.A tank is 5/9 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  14. 14.9/10 − 1/3 =
  15. 15.2/5 − 1/3 =
  16. 16.6/7 − 1/4 =
  17. 17.A tank is 3/8 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  18. 18.Ishaan has a ribbon 4/5 m long and cuts off 3/4 m. How long is the ribbon now (in m)? =
  19. 19.7/9 − 1/2 =
  20. 20.2/3 − 5/9 =
  21. 21.2/3 − 2/5 =
  22. 22.1/2 − 2/9 =
  23. 23.3/4 − 2/5 =
  24. 24.Riya has a ribbon 5/7 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  25. 25.1/3 − 1/7 =
  26. 26.3/7 − 1/4 =
  27. 27.3/4 − 1/6 =
  28. 28.A bottle has 8/9 litre of juice. Aarav drinks 1/2 litre. How much juice is left (in litres)? =
  29. 29.3/4 − 4/7 =
  30. 30.A bottle has 8/9 litre of juice. Riya drinks 1/3 litre. How much juice is left (in litres)? =
  31. 31.6/7 − 1/3 =
  32. 32.Anaya has a ribbon 9/10 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  33. 33.A bottle has 9/10 litre of juice. Vihaan drinks 1/6 litre. How much juice is left (in litres)? =
  34. 34.1/2 − 1/8 =
  35. 35.A bottle has 3/4 litre of juice. Kabir drinks 2/5 litre. How much juice is left (in litres)? =
  36. 36.5/8 − 1/6 =
  37. 37.A tank is 4/9 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  38. 38.Tara has a ribbon 1/2 m long and cuts off 3/10 m. How long is the ribbon now (in m)? =
  39. 39.A bottle has 2/3 litre of juice. Kabir drinks 2/7 litre. How much juice is left (in litres)? =
  40. 40.A bottle has 5/6 litre of juice. Sara drinks 2/9 litre. How much juice is left (in litres)? =

Answer key

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

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