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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 123 · 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. 1.5/6 − 1/3 =
  2. 2.2/9 + 4/7 =
  3. 3.2/9 + 3/10 =
  4. 4.4/5 − 4/9 =
  5. 5.7/8 + 7/9 =
  6. 6.2/9 + 1/11 =
  7. 7.2/8 + 6/11 =
  8. 8.3/8 − 1/5 =
  9. 9.4/12 − 1/5 =
  10. 10.9/12 − 1/2 =
  11. 11.1/11 + 4/5 =
  12. 12.2/3 + 9/10 =
  13. 13.2/4 + 3/4 =
  14. 14.1/5 + 1/3 =
  15. 15.4/10 + 1/6 =
  16. 16.11/12 + 1/2 =
  17. 17.1/2 − 3/12 =
  18. 18.1/4 − 1/11 =
  19. 19.7/9 − 2/4 =
  20. 20.2/4 − 2/5 =
  21. 21.5/8 + 2/3 =
  22. 22.2/3 − 4/8 =
  23. 23.4/8 + 2/4 =
  24. 24.6/10 + 6/7 =
  25. 25.9/10 + 1/2 =
  26. 26.1/2 − 4/9 =
  27. 27.10/11 − 4/5 =
  28. 28.5/10 + 6/12 =
  29. 29.1/3 − 1/10 =
  30. 30.2/4 − 2/12 =
  31. 31.1/2 − 3/12 =
  32. 32.2/3 + 4/11 =
  33. 33.2/3 + 1/9 =
  34. 34.7/9 + 3/10 =
  35. 35.11/12 − 1/3 =
  36. 36.1/3 − 1/6 =
  37. 37.2/3 + 1/2 =
  38. 38.5/8 − 2/4 =
  39. 39.1/2 + 4/9 =
  40. 40.1/5 + 4/5 =

Answer key

  1. 1/2
  2. 50/63
  3. 47/90
  4. 16/45
  5. 119/72
  6. 31/99
  7. 35/44
  8. 7/40
  9. 2/15
  10. 1/4
  11. 49/55
  12. 47/30
  13. 5/4
  14. 8/15
  15. 17/30
  16. 17/12
  17. 1/4
  18. 7/44
  19. 5/18
  20. 1/10
  21. 31/24
  22. 1/6
  23. 1
  24. 51/35
  25. 7/5
  26. 1/18
  27. 6/55
  28. 1
  29. 7/30
  30. 1/3
  31. 1/4
  32. 34/33
  33. 7/9
  34. 97/90
  35. 7/12
  36. 1/6
  37. 7/6
  38. 1/8
  39. 17/18
  40. 1

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