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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 814 · 40 sums
TalentJR

The trick (Urdhva Tiryagbhyam): Top: multiply crosswise — first top × second bottom, then first bottom × second top — and add (or subtract). Bottom: multiply the two bottoms. Simplify by dividing top and bottom by their HCF. Give the answer as a fraction like 17/12.

NameDateTime takenScore ___ / 40
  1. 1.3/5 − 3/12 =
  2. 2.3/5 + 2/4 =
  3. 3.1/5 + 4/7 =
  4. 4.1/2 − 2/10 =
  5. 5.3/9 + 6/12 =
  6. 6.6/10 − 2/5 =
  7. 7.1/5 + 9/10 =
  8. 8.1/3 + 5/7 =
  9. 9.3/4 − 4/6 =
  10. 10.3/5 − 1/3 =
  11. 11.4/11 + 1/11 =
  12. 12.5/6 − 2/4 =
  13. 13.3/5 + 3/6 =
  14. 14.3/5 + 1/7 =
  15. 15.6/12 + 1/2 =
  16. 16.5/6 − 6/11 =
  17. 17.1/3 + 1/2 =
  18. 18.4/9 − 2/12 =
  19. 19.3/4 + 9/11 =
  20. 20.4/9 + 1/2 =
  21. 21.2/6 + 3/10 =
  22. 22.8/11 − 1/2 =
  23. 23.7/11 − 2/4 =
  24. 24.4/5 + 1/9 =
  25. 25.7/12 + 7/9 =
  26. 26.5/7 + 1/6 =
  27. 27.3/7 + 1/2 =
  28. 28.1/2 − 1/5 =
  29. 29.4/9 − 3/10 =
  30. 30.8/10 + 4/6 =
  31. 31.8/10 + 3/4 =
  32. 32.3/4 − 3/7 =
  33. 33.2/8 − 2/10 =
  34. 34.4/6 − 1/10 =
  35. 35.4/8 + 4/8 =
  36. 36.3/10 + 1/2 =
  37. 37.8/10 + 6/10 =
  38. 38.2/6 + 1/3 =
  39. 39.4/8 + 3/10 =
  40. 40.9/12 − 5/11 =

Answer key

  1. 7/20
  2. 11/10
  3. 27/35
  4. 3/10
  5. 5/6
  6. 1/5
  7. 11/10
  8. 22/21
  9. 1/12
  10. 4/15
  11. 5/11
  12. 1/3
  13. 11/10
  14. 26/35
  15. 1
  16. 19/66
  17. 5/6
  18. 5/18
  19. 69/44
  20. 17/18
  21. 19/30
  22. 5/22
  23. 3/22
  24. 41/45
  25. 49/36
  26. 37/42
  27. 13/14
  28. 3/10
  29. 13/90
  30. 22/15
  31. 31/20
  32. 9/28
  33. 1/20
  34. 17/30
  35. 1
  36. 4/5
  37. 7/5
  38. 2/3
  39. 4/5
  40. 13/44

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