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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 97 · 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. 1.1/3 + 5/7 =
  2. 2.3/8 − 1/5 =
  3. 3.6/9 + 4/6 =
  4. 4.2/9 + 2/10 =
  5. 5.1/3 + 1/11 =
  6. 6.2/3 + 1/3 =
  7. 7.1/2 − 2/6 =
  8. 8.2/3 + 1/2 =
  9. 9.9/10 + 1/9 =
  10. 10.4/5 + 5/8 =
  11. 11.5/8 + 2/5 =
  12. 12.3/4 + 1/7 =
  13. 13.4/5 − 1/6 =
  14. 14.4/10 + 3/10 =
  15. 15.10/11 + 1/2 =
  16. 16.6/10 + 3/4 =
  17. 17.3/6 + 2/8 =
  18. 18.10/12 − 5/11 =
  19. 19.3/8 − 1/4 =
  20. 20.1/6 + 1/3 =
  21. 21.3/6 + 1/4 =
  22. 22.7/12 + 3/4 =
  23. 23.3/5 + 6/9 =
  24. 24.5/12 + 2/3 =
  25. 25.1/4 + 1/2 =
  26. 26.5/6 − 1/4 =
  27. 27.4/6 − 6/12 =
  28. 28.1/3 + 2/3 =
  29. 29.1/4 − 1/11 =
  30. 30.2/6 + 1/4 =
  31. 31.2/9 + 1/2 =
  32. 32.1/3 − 1/4 =
  33. 33.1/2 + 1/11 =
  34. 34.1/6 + 1/6 =
  35. 35.1/7 + 1/4 =
  36. 36.1/6 + 5/12 =
  37. 37.2/5 + 3/7 =
  38. 38.9/10 − 8/11 =
  39. 39.1/9 + 2/3 =
  40. 40.7/9 + 1/2 =

Answer key

  1. 22/21
  2. 7/40
  3. 4/3
  4. 19/45
  5. 14/33
  6. 1
  7. 1/6
  8. 7/6
  9. 91/90
  10. 57/40
  11. 41/40
  12. 25/28
  13. 19/30
  14. 7/10
  15. 31/22
  16. 27/20
  17. 3/4
  18. 25/66
  19. 1/8
  20. 1/2
  21. 3/4
  22. 4/3
  23. 19/15
  24. 13/12
  25. 3/4
  26. 7/12
  27. 1/6
  28. 1
  29. 7/44
  30. 7/12
  31. 13/18
  32. 1/12
  33. 13/22
  34. 1/3
  35. 11/28
  36. 7/12
  37. 29/35
  38. 19/110
  39. 7/9
  40. 23/18

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