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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 29 · 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. 1.4/8 + 1/3 =
  2. 2.11/12 + 1/3 =
  3. 3.1/2 − 3/10 =
  4. 4.2/4 + 2/11 =
  5. 5.7/9 − 2/10 =
  6. 6.1/5 + 1/2 =
  7. 7.7/11 − 1/4 =
  8. 8.11/12 + 1/3 =
  9. 9.2/9 + 3/8 =
  10. 10.5/9 − 2/7 =
  11. 11.2/3 − 4/7 =
  12. 12.2/3 − 2/11 =
  13. 13.4/8 + 3/6 =
  14. 14.2/9 + 6/8 =
  15. 15.7/8 + 1/2 =
  16. 16.5/7 − 6/10 =
  17. 17.2/5 + 3/5 =
  18. 18.1/2 − 1/3 =
  19. 19.3/4 + 1/3 =
  20. 20.4/10 − 1/11 =
  21. 21.4/12 − 1/8 =
  22. 22.1/5 + 1/8 =
  23. 23.2/3 − 1/2 =
  24. 24.2/6 + 1/2 =
  25. 25.3/6 − 4/10 =
  26. 26.3/4 − 1/2 =
  27. 27.2/7 − 2/8 =
  28. 28.1/2 + 8/9 =
  29. 29.2/3 + 10/11 =
  30. 30.7/8 − 2/7 =
  31. 31.2/3 + 4/5 =
  32. 32.8/10 − 1/9 =
  33. 33.7/11 + 8/9 =
  34. 34.1/12 + 3/7 =
  35. 35.1/7 + 4/8 =
  36. 36.2/8 + 1/4 =
  37. 37.6/7 + 1/3 =
  38. 38.8/12 + 6/12 =
  39. 39.3/6 − 1/3 =
  40. 40.6/7 − 2/9 =

Answer key

  1. 5/6
  2. 5/4
  3. 1/5
  4. 15/22
  5. 26/45
  6. 7/10
  7. 17/44
  8. 5/4
  9. 43/72
  10. 17/63
  11. 2/21
  12. 16/33
  13. 1
  14. 35/36
  15. 11/8
  16. 4/35
  17. 1
  18. 1/6
  19. 13/12
  20. 17/55
  21. 5/24
  22. 13/40
  23. 1/6
  24. 5/6
  25. 1/10
  26. 1/4
  27. 1/28
  28. 25/18
  29. 52/33
  30. 33/56
  31. 22/15
  32. 31/45
  33. 151/99
  34. 43/84
  35. 9/14
  36. 1/2
  37. 25/21
  38. 7/6
  39. 1/6
  40. 40/63

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