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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 409 · 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 − 2/10 =
  2. 2.5/8 − 2/4 =
  3. 3.1/2 + 2/4 =
  4. 4.4/7 − 2/6 =
  5. 5.1/2 + 3/6 =
  6. 6.1/4 + 5/6 =
  7. 7.1/10 + 7/8 =
  8. 8.1/5 + 2/3 =
  9. 9.4/7 − 1/6 =
  10. 10.8/12 − 5/11 =
  11. 11.1/12 + 1/7 =
  12. 12.9/12 − 1/5 =
  13. 13.3/5 + 5/6 =
  14. 14.8/11 + 5/6 =
  15. 15.8/10 − 2/4 =
  16. 16.2/3 − 7/12 =
  17. 17.1/2 − 3/11 =
  18. 18.1/2 + 2/11 =
  19. 19.1/2 + 9/10 =
  20. 20.4/8 − 2/6 =
  21. 21.2/12 + 1/3 =
  22. 22.2/4 − 1/3 =
  23. 23.1/5 + 1/4 =
  24. 24.1/2 + 3/7 =
  25. 25.3/7 + 1/5 =
  26. 26.8/9 + 4/11 =
  27. 27.10/11 + 1/3 =
  28. 28.4/8 + 1/3 =
  29. 29.2/5 + 2/11 =
  30. 30.4/8 + 2/4 =
  31. 31.2/4 − 2/6 =
  32. 32.2/9 − 1/11 =
  33. 33.2/4 + 8/9 =
  34. 34.2/7 − 1/4 =
  35. 35.1/5 + 3/7 =
  36. 36.1/2 + 2/6 =
  37. 37.8/10 − 1/7 =
  38. 38.5/8 − 2/5 =
  39. 39.1/2 + 8/11 =
  40. 40.2/9 + 2/4 =

Answer key

  1. 1/20
  2. 1/8
  3. 1
  4. 5/21
  5. 1
  6. 13/12
  7. 39/40
  8. 13/15
  9. 17/42
  10. 7/33
  11. 19/84
  12. 11/20
  13. 43/30
  14. 103/66
  15. 3/10
  16. 1/12
  17. 5/22
  18. 15/22
  19. 7/5
  20. 1/6
  21. 1/2
  22. 1/6
  23. 9/20
  24. 13/14
  25. 22/35
  26. 124/99
  27. 41/33
  28. 5/6
  29. 32/55
  30. 1
  31. 1/6
  32. 13/99
  33. 25/18
  34. 1/28
  35. 22/35
  36. 5/6
  37. 23/35
  38. 9/40
  39. 27/22
  40. 13/18

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