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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 102 · 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. 1.2/5 + 2/3 =
  2. 2.1/4 + 4/6 =
  3. 3.1/2 + 2/5 =
  4. 4.6/10 + 1/2 =
  5. 5.2/3 − 1/9 =
  6. 6.2/4 + 2/4 =
  7. 7.11/12 + 2/7 =
  8. 8.7/10 + 2/3 =
  9. 9.3/9 − 1/4 =
  10. 10.1/3 + 2/10 =
  11. 11.5/8 − 1/9 =
  12. 12.4/10 − 2/7 =
  13. 13.3/4 − 1/11 =
  14. 14.2/7 + 1/12 =
  15. 15.4/11 + 4/5 =
  16. 16.6/7 + 5/6 =
  17. 17.1/8 + 2/12 =
  18. 18.3/7 − 1/9 =
  19. 19.2/4 − 1/3 =
  20. 20.1/4 + 8/9 =
  21. 21.11/12 − 1/2 =
  22. 22.2/5 + 3/6 =
  23. 23.2/3 − 2/4 =
  24. 24.2/4 − 3/12 =
  25. 25.4/5 + 2/4 =
  26. 26.3/4 − 1/7 =
  27. 27.7/12 − 2/6 =
  28. 28.1/2 − 1/4 =
  29. 29.5/8 + 2/5 =
  30. 30.10/11 + 4/6 =
  31. 31.4/5 + 1/12 =
  32. 32.4/5 + 3/6 =
  33. 33.9/11 + 2/9 =
  34. 34.3/5 − 5/11 =
  35. 35.5/6 − 4/5 =
  36. 36.8/11 + 1/4 =
  37. 37.8/9 + 2/4 =
  38. 38.5/10 − 1/6 =
  39. 39.4/6 − 3/8 =
  40. 40.5/9 + 1/4 =

Answer key

  1. 16/15
  2. 11/12
  3. 9/10
  4. 11/10
  5. 5/9
  6. 1
  7. 101/84
  8. 41/30
  9. 1/12
  10. 8/15
  11. 37/72
  12. 4/35
  13. 29/44
  14. 31/84
  15. 64/55
  16. 71/42
  17. 7/24
  18. 20/63
  19. 1/6
  20. 41/36
  21. 5/12
  22. 9/10
  23. 1/6
  24. 1/4
  25. 13/10
  26. 17/28
  27. 1/4
  28. 1/4
  29. 41/40
  30. 52/33
  31. 53/60
  32. 13/10
  33. 103/99
  34. 8/55
  35. 1/30
  36. 43/44
  37. 25/18
  38. 1/3
  39. 7/24
  40. 29/36

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