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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 502 · 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. 1.3/4 − 1/7 =
  2. 2.5/7 − 1/5 =
  3. 3.2/3 + 2/3 =
  4. 4.6/11 − 1/2 =
  5. 5.5/7 − 6/12 =
  6. 6.8/10 + 2/4 =
  7. 7.2/3 − 3/7 =
  8. 8.10/11 + 1/5 =
  9. 9.2/3 + 1/3 =
  10. 10.1/2 + 2/4 =
  11. 11.4/7 + 2/8 =
  12. 12.8/9 − 1/3 =
  13. 13.1/5 + 2/7 =
  14. 14.5/7 + 3/9 =
  15. 15.10/11 − 6/11 =
  16. 16.4/7 − 1/3 =
  17. 17.2/9 + 3/7 =
  18. 18.2/11 + 6/8 =
  19. 19.2/3 + 1/4 =
  20. 20.2/3 − 1/11 =
  21. 21.6/10 − 1/3 =
  22. 22.4/5 + 1/2 =
  23. 23.1/3 + 11/12 =
  24. 24.2/6 + 5/6 =
  25. 25.5/10 + 3/5 =
  26. 26.4/9 − 1/4 =
  27. 27.6/11 + 6/12 =
  28. 28.1/2 + 2/12 =
  29. 29.1/5 + 2/8 =
  30. 30.9/10 + 6/9 =
  31. 31.10/12 − 4/11 =
  32. 32.9/11 − 2/6 =
  33. 33.10/11 + 6/9 =
  34. 34.2/4 − 2/11 =
  35. 35.3/4 + 3/7 =
  36. 36.9/11 + 7/9 =
  37. 37.5/9 + 2/3 =
  38. 38.2/3 + 2/8 =
  39. 39.1/10 + 6/10 =
  40. 40.8/11 + 4/12 =

Answer key

  1. 17/28
  2. 18/35
  3. 4/3
  4. 1/22
  5. 3/14
  6. 13/10
  7. 5/21
  8. 61/55
  9. 1
  10. 1
  11. 23/28
  12. 5/9
  13. 17/35
  14. 22/21
  15. 4/11
  16. 5/21
  17. 41/63
  18. 41/44
  19. 11/12
  20. 19/33
  21. 4/15
  22. 13/10
  23. 5/4
  24. 7/6
  25. 11/10
  26. 7/36
  27. 23/22
  28. 2/3
  29. 9/20
  30. 47/30
  31. 31/66
  32. 16/33
  33. 52/33
  34. 7/22
  35. 33/28
  36. 158/99
  37. 11/9
  38. 11/12
  39. 7/10
  40. 35/33

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