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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 871 · 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. 1.3/4 − 1/6 =
  2. 2.5/12 − 1/7 =
  3. 3.1/2 + 1/4 =
  4. 4.2/3 − 1/3 =
  5. 5.4/12 − 2/10 =
  6. 6.1/12 + 9/10 =
  7. 7.1/2 − 1/5 =
  8. 8.3/4 − 1/5 =
  9. 9.1/2 + 6/8 =
  10. 10.1/7 + 1/5 =
  11. 11.1/6 + 3/7 =
  12. 12.8/10 + 5/9 =
  13. 13.4/6 − 1/2 =
  14. 14.4/6 + 1/2 =
  15. 15.4/6 − 2/8 =
  16. 16.8/9 − 1/3 =
  17. 17.3/6 + 5/6 =
  18. 18.4/6 + 1/2 =
  19. 19.5/9 + 6/9 =
  20. 20.1/4 − 1/6 =
  21. 21.1/3 − 2/11 =
  22. 22.5/7 + 1/3 =
  23. 23.2/6 + 2/3 =
  24. 24.1/2 + 7/10 =
  25. 25.1/4 − 1/8 =
  26. 26.11/12 + 7/9 =
  27. 27.1/2 + 3/6 =
  28. 28.1/2 + 1/3 =
  29. 29.3/5 + 5/8 =
  30. 30.1/2 − 1/4 =
  31. 31.1/4 − 1/6 =
  32. 32.1/2 + 6/12 =
  33. 33.2/3 + 1/9 =
  34. 34.6/7 + 1/3 =
  35. 35.1/2 + 3/12 =
  36. 36.9/10 − 2/5 =
  37. 37.2/3 − 1/7 =
  38. 38.2/5 − 1/6 =
  39. 39.1/3 − 2/12 =
  40. 40.7/12 + 6/12 =

Answer key

  1. 7/12
  2. 23/84
  3. 3/4
  4. 1/3
  5. 2/15
  6. 59/60
  7. 3/10
  8. 11/20
  9. 5/4
  10. 12/35
  11. 25/42
  12. 61/45
  13. 1/6
  14. 7/6
  15. 5/12
  16. 5/9
  17. 4/3
  18. 7/6
  19. 11/9
  20. 1/12
  21. 5/33
  22. 22/21
  23. 1
  24. 6/5
  25. 1/8
  26. 61/36
  27. 1
  28. 5/6
  29. 49/40
  30. 1/4
  31. 1/12
  32. 1
  33. 7/9
  34. 25/21
  35. 3/4
  36. 1/2
  37. 11/21
  38. 7/30
  39. 1/6
  40. 13/12

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