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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 775 · 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. 1.1/2 − 1/3 =
  2. 2.7/12 − 2/11 =
  3. 3.10/12 − 2/3 =
  4. 4.8/11 − 4/12 =
  5. 5.1/3 + 4/11 =
  6. 6.1/2 − 1/6 =
  7. 7.1/4 + 4/12 =
  8. 8.6/8 − 1/3 =
  9. 9.1/2 + 1/9 =
  10. 10.4/5 − 2/6 =
  11. 11.2/4 + 4/5 =
  12. 12.4/9 + 6/11 =
  13. 13.3/4 − 1/8 =
  14. 14.2/6 + 1/2 =
  15. 15.11/12 − 3/4 =
  16. 16.3/11 + 3/5 =
  17. 17.2/7 + 8/9 =
  18. 18.6/7 − 1/2 =
  19. 19.1/6 + 1/3 =
  20. 20.2/6 + 1/5 =
  21. 21.1/2 + 3/4 =
  22. 22.4/10 + 5/9 =
  23. 23.7/10 + 2/5 =
  24. 24.1/3 − 1/5 =
  25. 25.7/9 − 4/9 =
  26. 26.3/4 − 1/11 =
  27. 27.3/4 + 1/5 =
  28. 28.1/2 + 1/2 =
  29. 29.2/3 + 2/3 =
  30. 30.2/4 − 4/11 =
  31. 31.5/9 − 2/5 =
  32. 32.1/5 + 1/5 =
  33. 33.3/4 − 1/6 =
  34. 34.1/4 + 1/2 =
  35. 35.7/11 − 1/4 =
  36. 36.1/2 + 6/7 =
  37. 37.1/2 − 1/4 =
  38. 38.2/3 − 2/6 =
  39. 39.3/9 + 1/8 =
  40. 40.8/10 + 1/5 =

Answer key

  1. 1/6
  2. 53/132
  3. 1/6
  4. 13/33
  5. 23/33
  6. 1/3
  7. 7/12
  8. 5/12
  9. 11/18
  10. 7/15
  11. 13/10
  12. 98/99
  13. 5/8
  14. 5/6
  15. 1/6
  16. 48/55
  17. 74/63
  18. 5/14
  19. 1/2
  20. 8/15
  21. 5/4
  22. 43/45
  23. 11/10
  24. 2/15
  25. 1/3
  26. 29/44
  27. 19/20
  28. 1
  29. 4/3
  30. 3/22
  31. 7/45
  32. 2/5
  33. 7/12
  34. 3/4
  35. 17/44
  36. 19/14
  37. 1/4
  38. 1/3
  39. 11/24
  40. 1

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