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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 574 · 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 − 2/7 =
  2. 2.4/11 + 9/11 =
  3. 3.2/5 + 6/11 =
  4. 4.8/9 + 2/9 =
  5. 5.8/10 + 3/5 =
  6. 6.1/4 − 1/5 =
  7. 7.1/11 + 2/7 =
  8. 8.5/6 − 3/4 =
  9. 9.2/5 − 3/11 =
  10. 10.1/2 − 1/5 =
  11. 11.4/5 − 1/2 =
  12. 12.7/10 − 3/8 =
  13. 13.2/12 + 2/3 =
  14. 14.4/5 + 3/4 =
  15. 15.1/7 + 7/11 =
  16. 16.6/7 − 1/3 =
  17. 17.8/9 + 1/2 =
  18. 18.1/2 − 1/12 =
  19. 19.2/5 + 1/2 =
  20. 20.1/9 + 5/6 =
  21. 21.7/10 − 1/2 =
  22. 22.10/11 + 3/4 =
  23. 23.1/7 + 9/10 =
  24. 24.2/7 + 7/10 =
  25. 25.1/10 + 1/9 =
  26. 26.10/11 + 1/5 =
  27. 27.2/11 + 7/10 =
  28. 28.4/5 + 1/3 =
  29. 29.2/10 + 10/12 =
  30. 30.5/10 + 5/12 =
  31. 31.1/7 + 1/9 =
  32. 32.8/10 + 1/2 =
  33. 33.10/12 + 1/2 =
  34. 34.7/10 − 4/10 =
  35. 35.1/2 + 3/8 =
  36. 36.6/7 − 1/2 =
  37. 37.1/4 + 3/8 =
  38. 38.6/8 − 2/11 =
  39. 39.4/7 + 3/5 =
  40. 40.1/2 + 8/9 =

Answer key

  1. 3/14
  2. 13/11
  3. 52/55
  4. 10/9
  5. 7/5
  6. 1/20
  7. 29/77
  8. 1/12
  9. 7/55
  10. 3/10
  11. 3/10
  12. 13/40
  13. 5/6
  14. 31/20
  15. 60/77
  16. 11/21
  17. 25/18
  18. 5/12
  19. 9/10
  20. 17/18
  21. 1/5
  22. 73/44
  23. 73/70
  24. 69/70
  25. 19/90
  26. 61/55
  27. 97/110
  28. 17/15
  29. 31/30
  30. 11/12
  31. 16/63
  32. 13/10
  33. 4/3
  34. 3/10
  35. 7/8
  36. 5/14
  37. 5/8
  38. 25/44
  39. 41/35
  40. 25/18

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