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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 93 · 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. 2.1/7 + 8/10 =
  3. 3.8/9 − 1/2 =
  4. 4.4/9 − 2/7 =
  5. 5.4/6 − 7/11 =
  6. 6.1/3 + 1/2 =
  7. 7.1/2 + 9/12 =
  8. 8.10/11 − 1/2 =
  9. 9.6/9 + 6/12 =
  10. 10.1/3 + 1/2 =
  11. 11.5/6 − 1/6 =
  12. 12.4/5 − 2/7 =
  13. 13.1/9 + 4/11 =
  14. 14.8/9 − 1/2 =
  15. 15.1/2 + 4/11 =
  16. 16.3/9 + 1/3 =
  17. 17.1/9 + 1/5 =
  18. 18.3/5 + 1/10 =
  19. 19.4/5 − 6/11 =
  20. 20.9/12 − 1/8 =
  21. 21.9/11 + 4/8 =
  22. 22.4/5 + 2/3 =
  23. 23.7/11 − 4/11 =
  24. 24.5/9 − 1/11 =
  25. 25.3/4 − 1/6 =
  26. 26.1/6 + 5/6 =
  27. 27.3/4 − 1/6 =
  28. 28.3/4 + 1/4 =
  29. 29.2/3 + 2/9 =
  30. 30.2/10 + 8/10 =
  31. 31.4/10 + 2/12 =
  32. 32.8/12 − 1/7 =
  33. 33.2/8 + 9/11 =
  34. 34.1/5 + 5/6 =
  35. 35.9/11 − 1/4 =
  36. 36.7/8 − 1/7 =
  37. 37.5/8 + 5/8 =
  38. 38.1/4 + 1/4 =
  39. 39.2/11 + 1/2 =
  40. 40.4/12 + 4/5 =

Answer key

  1. 1/3
  2. 33/35
  3. 7/18
  4. 10/63
  5. 1/33
  6. 5/6
  7. 5/4
  8. 9/22
  9. 7/6
  10. 5/6
  11. 2/3
  12. 18/35
  13. 47/99
  14. 7/18
  15. 19/22
  16. 2/3
  17. 14/45
  18. 7/10
  19. 14/55
  20. 5/8
  21. 29/22
  22. 22/15
  23. 3/11
  24. 46/99
  25. 7/12
  26. 1
  27. 7/12
  28. 1
  29. 8/9
  30. 1
  31. 17/30
  32. 11/21
  33. 47/44
  34. 31/30
  35. 25/44
  36. 41/56
  37. 5/4
  38. 1/2
  39. 15/22
  40. 17/15

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