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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 82 · 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. 1.2/3 − 1/3 =
  2. 2.1/4 + 4/5 =
  3. 3.3/4 + 1/2 =
  4. 4.2/3 − 3/9 =
  5. 5.6/8 + 5/9 =
  6. 6.3/6 − 4/11 =
  7. 7.1/4 + 3/9 =
  8. 8.1/3 + 3/9 =
  9. 9.1/3 − 2/7 =
  10. 10.10/11 − 7/9 =
  11. 11.1/3 + 4/5 =
  12. 12.5/9 − 1/2 =
  13. 13.3/12 + 6/7 =
  14. 14.2/4 + 1/2 =
  15. 15.1/9 − 1/10 =
  16. 16.1/4 + 9/10 =
  17. 17.2/4 + 1/2 =
  18. 18.2/6 + 10/11 =
  19. 19.2/3 + 2/10 =
  20. 20.5/12 + 3/4 =
  21. 21.5/8 + 7/12 =
  22. 22.2/4 + 1/4 =
  23. 23.4/8 + 4/5 =
  24. 24.9/10 + 2/3 =
  25. 25.6/9 − 6/11 =
  26. 26.2/3 + 1/5 =
  27. 27.2/5 − 4/12 =
  28. 28.1/3 + 1/8 =
  29. 29.8/10 + 2/8 =
  30. 30.6/8 + 2/10 =
  31. 31.4/6 + 1/2 =
  32. 32.3/4 + 2/5 =
  33. 33.1/2 − 1/3 =
  34. 34.1/2 + 3/4 =
  35. 35.1/2 − 1/10 =
  36. 36.1/2 − 2/11 =
  37. 37.1/2 − 2/10 =
  38. 38.1/4 + 1/7 =
  39. 39.1/5 + 1/8 =
  40. 40.1/9 + 1/9 =

Answer key

  1. 1/3
  2. 21/20
  3. 5/4
  4. 1/3
  5. 47/36
  6. 3/22
  7. 7/12
  8. 2/3
  9. 1/21
  10. 13/99
  11. 17/15
  12. 1/18
  13. 31/28
  14. 1
  15. 1/90
  16. 23/20
  17. 1
  18. 41/33
  19. 13/15
  20. 7/6
  21. 29/24
  22. 3/4
  23. 13/10
  24. 47/30
  25. 4/33
  26. 13/15
  27. 1/15
  28. 11/24
  29. 21/20
  30. 19/20
  31. 7/6
  32. 23/20
  33. 1/6
  34. 5/4
  35. 2/5
  36. 7/22
  37. 3/10
  38. 11/28
  39. 13/40
  40. 2/9

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