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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 23 · 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. 1.2/8 + 8/9 =
  2. 2.1/8 + 4/5 =
  3. 3.3/9 + 2/6 =
  4. 4.8/10 − 3/8 =
  5. 5.7/11 + 4/7 =
  6. 6.1/2 + 3/6 =
  7. 7.6/12 + 1/2 =
  8. 8.5/6 + 1/3 =
  9. 9.8/11 + 4/7 =
  10. 10.1/3 + 1/3 =
  11. 11.1/5 + 4/8 =
  12. 12.9/11 + 2/6 =
  13. 13.7/10 + 1/2 =
  14. 14.1/2 + 7/11 =
  15. 15.7/8 + 6/7 =
  16. 16.1/3 + 4/5 =
  17. 17.6/12 − 3/12 =
  18. 18.4/5 + 6/11 =
  19. 19.2/10 + 2/5 =
  20. 20.4/6 + 2/3 =
  21. 21.2/4 − 2/5 =
  22. 22.6/10 − 4/11 =
  23. 23.3/4 + 2/9 =
  24. 24.3/12 + 3/10 =
  25. 25.9/11 + 5/7 =
  26. 26.4/5 − 1/5 =
  27. 27.1/11 + 1/2 =
  28. 28.6/7 + 3/4 =
  29. 29.5/10 + 3/5 =
  30. 30.5/6 + 3/4 =
  31. 31.9/11 − 3/8 =
  32. 32.1/8 + 1/2 =
  33. 33.1/3 − 1/4 =
  34. 34.4/5 − 2/4 =
  35. 35.1/2 + 3/9 =
  36. 36.5/6 − 2/8 =
  37. 37.9/10 + 1/3 =
  38. 38.3/6 + 2/11 =
  39. 39.8/10 + 3/4 =
  40. 40.5/7 + 2/4 =

Answer key

  1. 41/36
  2. 37/40
  3. 2/3
  4. 17/40
  5. 93/77
  6. 1
  7. 1
  8. 7/6
  9. 100/77
  10. 2/3
  11. 7/10
  12. 38/33
  13. 6/5
  14. 25/22
  15. 97/56
  16. 17/15
  17. 1/4
  18. 74/55
  19. 3/5
  20. 4/3
  21. 1/10
  22. 13/55
  23. 35/36
  24. 11/20
  25. 118/77
  26. 3/5
  27. 13/22
  28. 45/28
  29. 11/10
  30. 19/12
  31. 39/88
  32. 5/8
  33. 1/12
  34. 3/10
  35. 5/6
  36. 7/12
  37. 37/30
  38. 15/22
  39. 31/20
  40. 17/14

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