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Adding Fractions with Different Denominators Worksheet

Fractions lesson 15: Adding fractions: different denominators · Set 11 · 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. 1.1/8 + 1/4 =
  2. 2.Rohan walks 3/10 km to the park and then 1/6 km to the shop. How far does Rohan walk in all (in km)? =
  3. 3.A recipe needs 1/8 kg of flour and 1/6 kg of sugar. How much is that in all (in kg)? =
  4. 4.1/8 + 3/4 =
  5. 5.6/7 + 1/4 =
  6. 6.1/10 + 1/3 =
  7. 7.A recipe needs 1/2 kg of flour and 2/5 kg of sugar. How much is that in all (in kg)? =
  8. 8.A jug has 1/9 litre of milk. Kabir pours in 5/6 litre more. How much milk is in the jug now (in litres)? =
  9. 9.2/5 + 5/6 =
  10. 10.4/5 + 2/3 =
  11. 11.4/9 + 2/3 =
  12. 12.1/10 + 2/3 =
  13. 13.A recipe needs 1/8 kg of flour and 1/4 kg of sugar. How much is that in all (in kg)? =
  14. 14.Riya walks 1/9 km to the park and then 2/3 km to the shop. How far does Riya walk in all (in km)? =
  15. 15.Ishaan walks 8/9 km to the park and then 5/6 km to the shop. How far does Ishaan walk in all (in km)? =
  16. 16.1/3 + 7/10 =
  17. 17.7/8 + 1/3 =
  18. 18.A recipe needs 1/3 kg of flour and 3/8 kg of sugar. How much is that in all (in kg)? =
  19. 19.Riya walks 1/8 km to the park and then 1/4 km to the shop. How far does Riya walk in all (in km)? =
  20. 20.A jug has 1/4 litre of milk. Kabir pours in 5/6 litre more. How much milk is in the jug now (in litres)? =
  21. 21.A recipe needs 5/9 kg of flour and 1/3 kg of sugar. How much is that in all (in kg)? =
  22. 22.A jug has 4/5 litre of milk. Diya pours in 1/4 litre more. How much milk is in the jug now (in litres)? =
  23. 23.4/7 + 1/4 =
  24. 24.Kabir walks 3/8 km to the park and then 1/6 km to the shop. How far does Kabir walk in all (in km)? =
  25. 25.4/5 + 1/3 =
  26. 26.Anaya walks 3/8 km to the park and then 2/3 km to the shop. How far does Anaya walk in all (in km)? =
  27. 27.A recipe needs 3/7 kg of flour and 1/3 kg of sugar. How much is that in all (in kg)? =
  28. 28.3/10 + 1/2 =
  29. 29.1/5 + 1/2 =
  30. 30.Arjun walks 5/9 km to the park and then 5/6 km to the shop. How far does Arjun walk in all (in km)? =
  31. 31.2/9 + 1/2 =
  32. 32.A jug has 1/6 litre of milk. Vihaan pours in 1/3 litre more. How much milk is in the jug now (in litres)? =
  33. 33.A recipe needs 5/6 kg of flour and 7/10 kg of sugar. How much is that in all (in kg)? =
  34. 34.3/10 + 2/3 =
  35. 35.3/5 + 3/10 =
  36. 36.2/5 + 2/3 =
  37. 37.2/3 + 3/10 =
  38. 38.1/6 + 2/9 =
  39. 39.8/9 + 1/6 =
  40. 40.4/5 + 1/4 =

Answer key

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

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