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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 246 · 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. 1.9/12 + 2/3 =
  2. 2.3/5 − 3/11 =
  3. 3.3/11 + 1/9 =
  4. 4.5/10 − 1/10 =
  5. 5.1/5 + 6/7 =
  6. 6.6/11 + 2/4 =
  7. 7.1/5 + 4/6 =
  8. 8.1/2 + 2/4 =
  9. 9.3/7 + 3/5 =
  10. 10.3/7 + 11/12 =
  11. 11.1/2 − 2/12 =
  12. 12.4/9 + 2/8 =
  13. 13.1/7 − 1/11 =
  14. 14.3/5 − 2/8 =
  15. 15.6/7 + 10/11 =
  16. 16.1/2 − 1/8 =
  17. 17.7/8 − 2/9 =
  18. 18.5/8 + 3/9 =
  19. 19.2/3 − 4/12 =
  20. 20.1/8 + 1/8 =
  21. 21.1/7 + 2/4 =
  22. 22.8/9 + 1/10 =
  23. 23.3/5 + 3/5 =
  24. 24.4/8 + 8/9 =
  25. 25.1/3 + 1/4 =
  26. 26.2/3 − 1/5 =
  27. 27.9/11 − 7/9 =
  28. 28.1/2 + 3/5 =
  29. 29.5/7 + 2/5 =
  30. 30.3/11 + 5/6 =
  31. 31.2/3 − 5/8 =
  32. 32.11/12 + 1/4 =
  33. 33.10/12 − 1/12 =
  34. 34.6/7 − 1/4 =
  35. 35.6/11 − 1/3 =
  36. 36.3/5 + 1/5 =
  37. 37.7/12 + 1/8 =
  38. 38.6/10 − 3/7 =
  39. 39.1/2 + 1/2 =
  40. 40.2/5 + 2/10 =

Answer key

  1. 17/12
  2. 18/55
  3. 38/99
  4. 2/5
  5. 37/35
  6. 23/22
  7. 13/15
  8. 1
  9. 36/35
  10. 113/84
  11. 1/3
  12. 25/36
  13. 4/77
  14. 7/20
  15. 136/77
  16. 3/8
  17. 47/72
  18. 23/24
  19. 1/3
  20. 1/4
  21. 9/14
  22. 89/90
  23. 6/5
  24. 25/18
  25. 7/12
  26. 7/15
  27. 4/99
  28. 11/10
  29. 39/35
  30. 73/66
  31. 1/24
  32. 7/6
  33. 3/4
  34. 17/28
  35. 7/33
  36. 4/5
  37. 17/24
  38. 6/35
  39. 1
  40. 3/5

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