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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 749 · 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. 1.7/12 + 3/10 =
  2. 2.2/4 + 2/4 =
  3. 3.3/7 − 2/6 =
  4. 4.5/9 + 3/4 =
  5. 5.1/5 + 2/3 =
  6. 6.6/9 − 2/11 =
  7. 7.6/11 − 1/4 =
  8. 8.2/10 + 4/9 =
  9. 9.7/11 − 1/10 =
  10. 10.1/3 + 1/4 =
  11. 11.4/9 − 3/7 =
  12. 12.2/3 + 1/2 =
  13. 13.8/9 + 3/8 =
  14. 14.2/7 + 1/8 =
  15. 15.2/3 + 2/9 =
  16. 16.2/3 + 3/6 =
  17. 17.8/9 − 1/2 =
  18. 18.4/10 − 2/8 =
  19. 19.2/4 + 6/12 =
  20. 20.11/12 − 3/10 =
  21. 21.2/4 + 1/2 =
  22. 22.6/7 − 2/3 =
  23. 23.2/3 + 3/7 =
  24. 24.8/12 + 1/2 =
  25. 25.11/12 + 8/10 =
  26. 26.2/7 − 2/12 =
  27. 27.5/11 + 1/3 =
  28. 28.5/10 + 1/10 =
  29. 29.2/4 + 6/7 =
  30. 30.1/7 + 1/2 =
  31. 31.10/11 + 1/5 =
  32. 32.3/4 − 6/10 =
  33. 33.1/3 + 2/5 =
  34. 34.6/10 + 1/3 =
  35. 35.8/12 + 3/4 =
  36. 36.4/8 + 4/5 =
  37. 37.9/12 − 3/6 =
  38. 38.5/6 − 1/2 =
  39. 39.7/10 + 2/3 =
  40. 40.2/3 + 6/9 =

Answer key

  1. 53/60
  2. 1
  3. 2/21
  4. 47/36
  5. 13/15
  6. 16/33
  7. 13/44
  8. 29/45
  9. 59/110
  10. 7/12
  11. 1/63
  12. 7/6
  13. 91/72
  14. 23/56
  15. 8/9
  16. 7/6
  17. 7/18
  18. 3/20
  19. 1
  20. 37/60
  21. 1
  22. 4/21
  23. 23/21
  24. 7/6
  25. 103/60
  26. 5/42
  27. 26/33
  28. 3/5
  29. 19/14
  30. 9/14
  31. 61/55
  32. 3/20
  33. 11/15
  34. 14/15
  35. 17/12
  36. 13/10
  37. 1/4
  38. 1/3
  39. 41/30
  40. 4/3

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