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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 353 · 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. 1.3/8 + 2/7 =
  2. 2.3/4 + 2/8 =
  3. 3.3/4 + 1/2 =
  4. 4.3/9 + 1/2 =
  5. 5.5/12 + 2/3 =
  6. 6.5/6 + 1/4 =
  7. 7.2/6 + 6/12 =
  8. 8.1/9 + 3/4 =
  9. 9.7/11 − 1/5 =
  10. 10.2/12 + 1/4 =
  11. 11.2/3 + 2/9 =
  12. 12.3/8 + 1/5 =
  13. 13.11/12 − 6/9 =
  14. 14.6/7 + 2/3 =
  15. 15.4/6 − 3/5 =
  16. 16.9/12 − 1/11 =
  17. 17.1/8 + 1/7 =
  18. 18.1/3 + 7/10 =
  19. 19.2/5 + 1/2 =
  20. 20.7/11 − 5/11 =
  21. 21.9/12 + 2/6 =
  22. 22.3/6 + 2/3 =
  23. 23.2/9 + 1/2 =
  24. 24.1/9 + 7/10 =
  25. 25.2/3 + 8/9 =
  26. 26.2/11 + 1/2 =
  27. 27.8/9 − 1/2 =
  28. 28.1/10 + 1/7 =
  29. 29.3/5 + 4/6 =
  30. 30.4/12 + 3/11 =
  31. 31.4/5 − 1/2 =
  32. 32.7/12 + 2/4 =
  33. 33.1/2 − 4/12 =
  34. 34.6/7 − 1/12 =
  35. 35.6/7 − 1/2 =
  36. 36.9/11 − 4/12 =
  37. 37.1/2 + 2/8 =
  38. 38.4/10 + 7/9 =
  39. 39.2/4 − 1/3 =
  40. 40.4/12 + 2/5 =

Answer key

  1. 37/56
  2. 1
  3. 5/4
  4. 5/6
  5. 13/12
  6. 13/12
  7. 5/6
  8. 31/36
  9. 24/55
  10. 5/12
  11. 8/9
  12. 23/40
  13. 1/4
  14. 32/21
  15. 1/15
  16. 29/44
  17. 15/56
  18. 31/30
  19. 9/10
  20. 2/11
  21. 13/12
  22. 7/6
  23. 13/18
  24. 73/90
  25. 14/9
  26. 15/22
  27. 7/18
  28. 17/70
  29. 19/15
  30. 20/33
  31. 3/10
  32. 13/12
  33. 1/6
  34. 65/84
  35. 5/14
  36. 16/33
  37. 3/4
  38. 53/45
  39. 1/6
  40. 11/15

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