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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 472 · 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. 1.1/11 + 5/6 =
  2. 2.5/8 + 5/12 =
  3. 3.3/4 + 2/4 =
  4. 4.6/12 + 2/12 =
  5. 5.2/4 + 2/10 =
  6. 6.2/5 + 7/8 =
  7. 7.2/8 + 10/11 =
  8. 8.1/4 + 1/3 =
  9. 9.1/3 − 1/9 =
  10. 10.2/10 + 2/7 =
  11. 11.1/2 − 4/11 =
  12. 12.1/2 + 10/12 =
  13. 13.2/7 − 1/8 =
  14. 14.6/9 + 6/11 =
  15. 15.1/5 + 8/12 =
  16. 16.1/4 + 4/6 =
  17. 17.5/9 − 1/2 =
  18. 18.5/12 − 2/6 =
  19. 19.4/5 − 1/2 =
  20. 20.5/9 + 2/8 =
  21. 21.1/10 + 6/12 =
  22. 22.9/11 − 3/4 =
  23. 23.1/2 − 1/12 =
  24. 24.9/12 + 8/12 =
  25. 25.5/9 + 3/8 =
  26. 26.2/3 + 3/4 =
  27. 27.3/5 + 1/2 =
  28. 28.6/9 + 1/2 =
  29. 29.4/6 − 6/10 =
  30. 30.6/7 + 5/11 =
  31. 31.7/8 + 2/4 =
  32. 32.1/8 + 4/5 =
  33. 33.1/2 − 4/10 =
  34. 34.3/4 + 3/4 =
  35. 35.8/10 + 1/2 =
  36. 36.5/6 − 3/4 =
  37. 37.6/12 − 1/7 =
  38. 38.1/3 − 3/12 =
  39. 39.5/9 + 3/9 =
  40. 40.5/12 + 1/2 =

Answer key

  1. 61/66
  2. 25/24
  3. 5/4
  4. 2/3
  5. 7/10
  6. 51/40
  7. 51/44
  8. 7/12
  9. 2/9
  10. 17/35
  11. 3/22
  12. 4/3
  13. 9/56
  14. 40/33
  15. 13/15
  16. 11/12
  17. 1/18
  18. 1/12
  19. 3/10
  20. 29/36
  21. 3/5
  22. 3/44
  23. 5/12
  24. 17/12
  25. 67/72
  26. 17/12
  27. 11/10
  28. 7/6
  29. 1/15
  30. 101/77
  31. 11/8
  32. 37/40
  33. 1/10
  34. 3/2
  35. 13/10
  36. 1/12
  37. 5/14
  38. 1/12
  39. 8/9
  40. 11/12

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