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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 419 · 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. 1.1/4 − 2/9 =
  2. 2.1/2 + 3/4 =
  3. 3.6/7 + 2/4 =
  4. 4.7/9 − 4/11 =
  5. 5.1/7 + 2/7 =
  6. 6.7/10 − 1/4 =
  7. 7.8/10 − 2/4 =
  8. 8.10/11 − 2/9 =
  9. 9.10/11 + 1/6 =
  10. 10.2/6 + 1/3 =
  11. 11.1/2 + 2/12 =
  12. 12.6/10 + 10/11 =
  13. 13.5/7 + 3/10 =
  14. 14.8/9 − 4/5 =
  15. 15.8/9 + 3/11 =
  16. 16.1/2 + 4/12 =
  17. 17.2/3 − 1/9 =
  18. 18.9/10 − 5/9 =
  19. 19.8/11 + 1/2 =
  20. 20.1/10 + 1/3 =
  21. 21.3/8 − 4/12 =
  22. 22.2/4 + 3/11 =
  23. 23.5/11 − 1/3 =
  24. 24.6/10 + 2/8 =
  25. 25.6/7 − 5/8 =
  26. 26.1/3 + 3/10 =
  27. 27.5/7 − 1/6 =
  28. 28.1/8 + 7/11 =
  29. 29.2/5 + 1/12 =
  30. 30.4/11 + 2/3 =
  31. 31.2/7 + 1/2 =
  32. 32.1/9 + 5/8 =
  33. 33.2/4 + 1/5 =
  34. 34.2/10 + 4/5 =
  35. 35.3/9 + 1/11 =
  36. 36.1/4 + 2/4 =
  37. 37.1/4 + 1/9 =
  38. 38.2/5 − 4/12 =
  39. 39.3/6 + 5/7 =
  40. 40.4/7 − 2/7 =

Answer key

  1. 1/36
  2. 5/4
  3. 19/14
  4. 41/99
  5. 3/7
  6. 9/20
  7. 3/10
  8. 68/99
  9. 71/66
  10. 2/3
  11. 2/3
  12. 83/55
  13. 71/70
  14. 4/45
  15. 115/99
  16. 5/6
  17. 5/9
  18. 31/90
  19. 27/22
  20. 13/30
  21. 1/24
  22. 17/22
  23. 4/33
  24. 17/20
  25. 13/56
  26. 19/30
  27. 23/42
  28. 67/88
  29. 29/60
  30. 34/33
  31. 11/14
  32. 53/72
  33. 7/10
  34. 1
  35. 14/33
  36. 3/4
  37. 13/36
  38. 1/15
  39. 17/14
  40. 2/7

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