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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 223 · 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. 1.10/12 − 2/6 =
  2. 2.3/4 + 1/10 =
  3. 3.2/4 + 11/12 =
  4. 4.1/2 + 1/2 =
  5. 5.7/9 − 9/12 =
  6. 6.9/10 − 3/4 =
  7. 7.1/10 + 3/7 =
  8. 8.6/7 − 2/12 =
  9. 9.3/4 + 1/3 =
  10. 10.2/4 + 1/4 =
  11. 11.3/8 + 1/2 =
  12. 12.4/8 + 2/3 =
  13. 13.1/6 + 3/5 =
  14. 14.3/4 + 1/2 =
  15. 15.8/10 − 2/4 =
  16. 16.3/4 + 2/9 =
  17. 17.3/6 + 3/10 =
  18. 18.8/10 − 3/4 =
  19. 19.4/9 + 7/11 =
  20. 20.2/4 − 2/9 =
  21. 21.8/11 − 4/6 =
  22. 22.7/10 − 1/2 =
  23. 23.2/9 + 1/2 =
  24. 24.3/7 + 2/6 =
  25. 25.2/11 + 10/12 =
  26. 26.5/7 − 1/5 =
  27. 27.1/2 − 1/5 =
  28. 28.4/7 + 2/10 =
  29. 29.3/6 − 2/6 =
  30. 30.5/9 − 1/3 =
  31. 31.5/10 + 2/7 =
  32. 32.1/2 + 1/2 =
  33. 33.5/6 − 7/9 =
  34. 34.1/4 + 6/12 =
  35. 35.6/11 − 2/5 =
  36. 36.10/12 − 2/3 =
  37. 37.1/5 + 2/3 =
  38. 38.1/2 + 1/2 =
  39. 39.2/10 + 1/8 =
  40. 40.5/11 + 1/3 =

Answer key

  1. 1/2
  2. 17/20
  3. 17/12
  4. 1
  5. 1/36
  6. 3/20
  7. 37/70
  8. 29/42
  9. 13/12
  10. 3/4
  11. 7/8
  12. 7/6
  13. 23/30
  14. 5/4
  15. 3/10
  16. 35/36
  17. 4/5
  18. 1/20
  19. 107/99
  20. 5/18
  21. 2/33
  22. 1/5
  23. 13/18
  24. 16/21
  25. 67/66
  26. 18/35
  27. 3/10
  28. 27/35
  29. 1/6
  30. 2/9
  31. 11/14
  32. 1
  33. 1/18
  34. 3/4
  35. 8/55
  36. 1/6
  37. 13/15
  38. 1
  39. 13/40
  40. 26/33

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