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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 17 · 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 − 1/6 =
  2. 2.2/10 + 3/9 =
  3. 3.4/5 + 1/4 =
  4. 4.2/4 + 1/9 =
  5. 5.1/3 − 1/4 =
  6. 6.1/5 + 2/11 =
  7. 7.6/9 − 7/12 =
  8. 8.3/11 + 2/3 =
  9. 9.2/3 − 1/10 =
  10. 10.2/10 + 2/6 =
  11. 11.5/9 − 6/12 =
  12. 12.5/11 + 3/10 =
  13. 13.2/3 − 1/2 =
  14. 14.5/8 + 6/8 =
  15. 15.1/11 + 3/10 =
  16. 16.3/10 + 1/2 =
  17. 17.1/11 + 3/4 =
  18. 18.4/5 − 1/9 =
  19. 19.3/5 − 1/5 =
  20. 20.2/3 + 5/7 =
  21. 21.2/10 + 1/6 =
  22. 22.8/9 − 2/12 =
  23. 23.2/3 + 3/7 =
  24. 24.2/3 + 1/4 =
  25. 25.9/11 − 1/2 =
  26. 26.3/4 − 1/3 =
  27. 27.7/8 − 1/7 =
  28. 28.1/4 + 3/4 =
  29. 29.5/10 + 6/12 =
  30. 30.1/8 + 8/9 =
  31. 31.1/2 + 4/7 =
  32. 32.2/4 − 4/11 =
  33. 33.1/9 − 1/10 =
  34. 34.6/9 + 6/12 =
  35. 35.1/8 + 4/9 =
  36. 36.5/7 − 1/3 =
  37. 37.3/6 − 1/8 =
  38. 38.1/3 + 7/12 =
  39. 39.1/4 + 7/9 =
  40. 40.7/9 − 1/2 =

Answer key

  1. 1/3
  2. 8/15
  3. 21/20
  4. 11/18
  5. 1/12
  6. 21/55
  7. 1/12
  8. 31/33
  9. 17/30
  10. 8/15
  11. 1/18
  12. 83/110
  13. 1/6
  14. 11/8
  15. 43/110
  16. 4/5
  17. 37/44
  18. 31/45
  19. 2/5
  20. 29/21
  21. 11/30
  22. 13/18
  23. 23/21
  24. 11/12
  25. 7/22
  26. 5/12
  27. 41/56
  28. 1
  29. 1
  30. 73/72
  31. 15/14
  32. 3/22
  33. 1/90
  34. 7/6
  35. 41/72
  36. 8/21
  37. 3/8
  38. 11/12
  39. 37/36
  40. 5/18

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