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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 225 · 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. 1.1/3 + 1/5 =
  2. 2.3/9 − 2/12 =
  3. 3.3/5 + 1/10 =
  4. 4.1/4 + 6/8 =
  5. 5.6/11 + 1/3 =
  6. 6.3/10 − 1/4 =
  7. 7.6/8 + 2/5 =
  8. 8.7/9 + 2/12 =
  9. 9.9/12 + 6/10 =
  10. 10.1/3 − 1/11 =
  11. 11.1/2 − 1/4 =
  12. 12.2/3 − 2/9 =
  13. 13.4/10 + 6/10 =
  14. 14.8/11 + 4/7 =
  15. 15.4/7 − 2/11 =
  16. 16.8/11 + 1/9 =
  17. 17.5/8 + 3/7 =
  18. 18.9/10 − 2/5 =
  19. 19.10/12 + 1/3 =
  20. 20.3/6 + 8/12 =
  21. 21.1/9 + 2/6 =
  22. 22.8/10 − 4/6 =
  23. 23.5/8 − 1/6 =
  24. 24.3/11 + 1/2 =
  25. 25.8/10 − 1/11 =
  26. 26.2/11 + 1/11 =
  27. 27.1/2 − 2/5 =
  28. 28.2/3 + 2/9 =
  29. 29.2/4 + 4/8 =
  30. 30.1/5 + 4/10 =
  31. 31.7/9 + 1/3 =
  32. 32.9/11 − 2/9 =
  33. 33.2/4 + 2/4 =
  34. 34.1/12 + 7/8 =
  35. 35.6/11 + 1/2 =
  36. 36.10/12 − 1/2 =
  37. 37.1/11 + 6/8 =
  38. 38.1/2 + 1/2 =
  39. 39.2/8 − 1/10 =
  40. 40.3/5 − 6/12 =

Answer key

  1. 8/15
  2. 1/6
  3. 7/10
  4. 1
  5. 29/33
  6. 1/20
  7. 23/20
  8. 17/18
  9. 27/20
  10. 8/33
  11. 1/4
  12. 4/9
  13. 1
  14. 100/77
  15. 30/77
  16. 83/99
  17. 59/56
  18. 1/2
  19. 7/6
  20. 7/6
  21. 4/9
  22. 2/15
  23. 11/24
  24. 17/22
  25. 39/55
  26. 3/11
  27. 1/10
  28. 8/9
  29. 1
  30. 3/5
  31. 10/9
  32. 59/99
  33. 1
  34. 23/24
  35. 23/22
  36. 1/3
  37. 37/44
  38. 1
  39. 3/20
  40. 1/10

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