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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 78 · 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 + 3/7 =
  2. 2.8/12 − 1/4 =
  3. 3.8/9 − 2/3 =
  4. 4.5/12 − 2/7 =
  5. 5.8/9 − 2/12 =
  6. 6.5/9 − 1/2 =
  7. 7.7/10 − 4/7 =
  8. 8.4/6 − 1/9 =
  9. 9.1/9 + 4/6 =
  10. 10.7/9 − 4/11 =
  11. 11.8/11 + 3/5 =
  12. 12.11/12 − 1/2 =
  13. 13.3/6 + 1/3 =
  14. 14.6/8 + 1/12 =
  15. 15.10/11 − 2/3 =
  16. 16.1/2 − 1/5 =
  17. 17.6/8 − 1/4 =
  18. 18.2/4 − 1/9 =
  19. 19.2/8 + 5/10 =
  20. 20.3/4 − 3/12 =
  21. 21.1/3 − 1/5 =
  22. 22.6/10 + 2/3 =
  23. 23.6/11 + 2/6 =
  24. 24.8/10 + 9/11 =
  25. 25.1/6 + 1/8 =
  26. 26.5/9 + 4/9 =
  27. 27.4/9 + 1/4 =
  28. 28.3/4 − 6/10 =
  29. 29.1/2 + 2/6 =
  30. 30.5/6 − 3/5 =
  31. 31.4/5 + 3/6 =
  32. 32.1/2 + 8/9 =
  33. 33.3/8 − 2/7 =
  34. 34.1/2 + 3/4 =
  35. 35.7/9 + 2/4 =
  36. 36.2/8 + 3/7 =
  37. 37.2/9 + 1/5 =
  38. 38.6/8 + 1/2 =
  39. 39.2/12 + 4/9 =
  40. 40.3/6 − 2/7 =

Answer key

  1. 16/21
  2. 5/12
  3. 2/9
  4. 11/84
  5. 13/18
  6. 1/18
  7. 9/70
  8. 5/9
  9. 7/9
  10. 41/99
  11. 73/55
  12. 5/12
  13. 5/6
  14. 5/6
  15. 8/33
  16. 3/10
  17. 1/2
  18. 7/18
  19. 3/4
  20. 1/2
  21. 2/15
  22. 19/15
  23. 29/33
  24. 89/55
  25. 7/24
  26. 1
  27. 25/36
  28. 3/20
  29. 5/6
  30. 7/30
  31. 13/10
  32. 25/18
  33. 5/56
  34. 5/4
  35. 23/18
  36. 19/28
  37. 19/45
  38. 5/4
  39. 11/18
  40. 3/14

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