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Adding Fractions with Different Denominators Worksheet

Fractions lesson 15: Adding fractions: different denominators · Set 9 · 40 questions
TalentJR

The method (LCM first): Find the LCM of the two bottom numbers. Change each fraction to that bottom number (multiply its top and bottom by the same number). Add the tops, keep the bottom, and simplify.

NameDateTime takenScore ___ / 40
  1. 1.1/4 + 1/5 =
  2. 2.3/4 + 2/5 =
  3. 3.4/9 + 1/2 =
  4. 4.A jug has 3/7 litre of milk. Arjun pours in 2/3 litre more. How much milk is in the jug now (in litres)? =
  5. 5.A jug has 2/5 litre of milk. Riya pours in 3/10 litre more. How much milk is in the jug now (in litres)? =
  6. 6.1/4 + 1/8 =
  7. 7.Arjun walks 1/2 km to the park and then 1/3 km to the shop. How far does Arjun walk in all (in km)? =
  8. 8.A recipe needs 9/10 kg of flour and 2/5 kg of sugar. How much is that in all (in kg)? =
  9. 9.A recipe needs 1/3 kg of flour and 8/9 kg of sugar. How much is that in all (in kg)? =
  10. 10.A recipe needs 1/4 kg of flour and 4/7 kg of sugar. How much is that in all (in kg)? =
  11. 11.A recipe needs 5/6 kg of flour and 7/10 kg of sugar. How much is that in all (in kg)? =
  12. 12.A jug has 9/10 litre of milk. Tara pours in 5/6 litre more. How much milk is in the jug now (in litres)? =
  13. 13.6/7 + 1/4 =
  14. 14.1/10 + 1/3 =
  15. 15.Anaya walks 1/2 km to the park and then 2/3 km to the shop. How far does Anaya walk in all (in km)? =
  16. 16.9/10 + 1/5 =
  17. 17.Vihaan walks 2/5 km to the park and then 5/6 km to the shop. How far does Vihaan walk in all (in km)? =
  18. 18.1/5 + 1/2 =
  19. 19.A jug has 8/9 litre of milk. Aarav pours in 1/3 litre more. How much milk is in the jug now (in litres)? =
  20. 20.A recipe needs 5/7 kg of flour and 3/4 kg of sugar. How much is that in all (in kg)? =
  21. 21.Anaya walks 2/7 km to the park and then 1/2 km to the shop. How far does Anaya walk in all (in km)? =
  22. 22.Arjun walks 1/9 km to the park and then 2/3 km to the shop. How far does Arjun walk in all (in km)? =
  23. 23.8/9 + 1/2 =
  24. 24.2/3 + 2/9 =
  25. 25.1/5 + 1/4 =
  26. 26.5/7 + 1/4 =
  27. 27.A jug has 1/2 litre of milk. Kabir pours in 1/6 litre more. How much milk is in the jug now (in litres)? =
  28. 28.3/7 + 2/3 =
  29. 29.A jug has 3/8 litre of milk. Aarav pours in 1/3 litre more. How much milk is in the jug now (in litres)? =
  30. 30.A recipe needs 5/9 kg of flour and 1/6 kg of sugar. How much is that in all (in kg)? =
  31. 31.7/10 + 3/5 =
  32. 32.2/3 + 4/7 =
  33. 33.1/5 + 3/10 =
  34. 34.1/5 + 2/3 =
  35. 35.4/5 + 1/4 =
  36. 36.1/3 + 4/7 =
  37. 37.A recipe needs 1/10 kg of flour and 1/3 kg of sugar. How much is that in all (in kg)? =
  38. 38.1/9 + 2/3 =
  39. 39.1/8 + 2/3 =
  40. 40.1/3 + 6/7 =

Answer key

  1. 9/20
  2. 23/20
  3. 17/18
  4. 23/21
  5. 7/10
  6. 3/8
  7. 5/6
  8. 13/10
  9. 11/9
  10. 23/28
  11. 23/15
  12. 26/15
  13. 31/28
  14. 13/30
  15. 7/6
  16. 11/10
  17. 37/30
  18. 7/10
  19. 11/9
  20. 41/28
  21. 11/14
  22. 7/9
  23. 25/18
  24. 8/9
  25. 9/20
  26. 27/28
  27. 2/3
  28. 23/21
  29. 17/24
  30. 13/18
  31. 13/10
  32. 26/21
  33. 1/2
  34. 13/15
  35. 21/20
  36. 19/21
  37. 13/30
  38. 7/9
  39. 19/24
  40. 25/21

Free fractions lessons, practice and worksheets at talentjr.in/fractions-for-kids