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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 202 · 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. 1.4/5 − 3/11 =
  2. 2.4/9 + 2/5 =
  3. 3.2/4 + 2/6 =
  4. 4.5/8 − 4/9 =
  5. 5.1/9 + 5/8 =
  6. 6.5/6 + 1/2 =
  7. 7.3/12 + 4/7 =
  8. 8.4/5 + 5/12 =
  9. 9.3/4 + 6/9 =
  10. 10.1/5 + 2/3 =
  11. 11.7/8 − 3/11 =
  12. 12.3/8 + 3/4 =
  13. 13.5/12 + 9/11 =
  14. 14.3/5 + 3/12 =
  15. 15.3/4 − 1/3 =
  16. 16.2/3 − 6/11 =
  17. 17.3/5 + 1/6 =
  18. 18.7/8 + 10/12 =
  19. 19.2/5 + 2/3 =
  20. 20.9/10 + 1/4 =
  21. 21.1/2 − 4/12 =
  22. 22.5/12 − 1/3 =
  23. 23.2/12 + 1/10 =
  24. 24.4/7 − 3/8 =
  25. 25.8/11 + 7/11 =
  26. 26.7/9 − 3/12 =
  27. 27.1/8 + 7/11 =
  28. 28.1/2 − 1/3 =
  29. 29.6/7 + 1/2 =
  30. 30.3/5 + 2/6 =
  31. 31.2/4 + 8/10 =
  32. 32.2/5 + 5/11 =
  33. 33.3/5 + 1/2 =
  34. 34.5/8 + 1/2 =
  35. 35.3/8 − 2/8 =
  36. 36.4/6 + 5/12 =
  37. 37.4/12 + 2/12 =
  38. 38.3/5 + 1/6 =
  39. 39.2/12 + 2/9 =
  40. 40.2/6 + 4/5 =

Answer key

  1. 29/55
  2. 38/45
  3. 5/6
  4. 13/72
  5. 53/72
  6. 4/3
  7. 23/28
  8. 73/60
  9. 17/12
  10. 13/15
  11. 53/88
  12. 9/8
  13. 163/132
  14. 17/20
  15. 5/12
  16. 4/33
  17. 23/30
  18. 41/24
  19. 16/15
  20. 23/20
  21. 1/6
  22. 1/12
  23. 4/15
  24. 11/56
  25. 15/11
  26. 19/36
  27. 67/88
  28. 1/6
  29. 19/14
  30. 14/15
  31. 13/10
  32. 47/55
  33. 11/10
  34. 9/8
  35. 1/8
  36. 13/12
  37. 1/2
  38. 23/30
  39. 7/18
  40. 17/15

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