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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 336 · 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. 1.6/7 + 8/12 =
  2. 2.2/6 + 1/5 =
  3. 3.5/12 + 2/8 =
  4. 4.7/12 + 7/8 =
  5. 5.3/8 + 5/9 =
  6. 6.1/4 + 10/12 =
  7. 7.2/4 − 1/5 =
  8. 8.4/6 + 4/6 =
  9. 9.4/5 − 1/5 =
  10. 10.6/7 − 1/3 =
  11. 11.4/12 + 5/6 =
  12. 12.5/12 + 2/7 =
  13. 13.2/10 − 1/6 =
  14. 14.8/9 − 1/3 =
  15. 15.1/2 + 5/6 =
  16. 16.10/12 − 1/3 =
  17. 17.2/10 + 2/7 =
  18. 18.3/4 + 3/4 =
  19. 19.5/11 + 1/3 =
  20. 20.5/9 + 1/2 =
  21. 21.1/3 + 3/11 =
  22. 22.5/12 + 4/7 =
  23. 23.1/2 + 2/5 =
  24. 24.6/7 − 5/11 =
  25. 25.2/8 + 2/11 =
  26. 26.1/3 + 3/4 =
  27. 27.1/6 + 1/6 =
  28. 28.1/2 + 2/5 =
  29. 29.8/10 − 3/8 =
  30. 30.5/10 + 8/10 =
  31. 31.4/11 + 7/8 =
  32. 32.3/4 − 1/3 =
  33. 33.4/12 − 2/8 =
  34. 34.1/2 − 5/12 =
  35. 35.7/8 + 8/11 =
  36. 36.2/3 + 3/5 =
  37. 37.1/2 − 2/9 =
  38. 38.7/9 + 3/9 =
  39. 39.4/5 − 1/2 =
  40. 40.6/8 − 1/5 =

Answer key

  1. 32/21
  2. 8/15
  3. 2/3
  4. 35/24
  5. 67/72
  6. 13/12
  7. 3/10
  8. 4/3
  9. 3/5
  10. 11/21
  11. 7/6
  12. 59/84
  13. 1/30
  14. 5/9
  15. 4/3
  16. 1/2
  17. 17/35
  18. 3/2
  19. 26/33
  20. 19/18
  21. 20/33
  22. 83/84
  23. 9/10
  24. 31/77
  25. 19/44
  26. 13/12
  27. 1/3
  28. 9/10
  29. 17/40
  30. 13/10
  31. 109/88
  32. 5/12
  33. 1/12
  34. 1/12
  35. 141/88
  36. 19/15
  37. 5/18
  38. 10/9
  39. 3/10
  40. 11/20

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