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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 365 · 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. 1.6/7 − 1/8 =
  2. 2.2/3 − 1/3 =
  3. 3.4/8 + 1/2 =
  4. 4.1/10 + 1/4 =
  5. 5.4/9 + 1/4 =
  6. 6.3/8 + 4/5 =
  7. 7.2/3 + 4/5 =
  8. 8.7/11 − 3/5 =
  9. 9.1/2 + 3/12 =
  10. 10.2/3 − 1/5 =
  11. 11.5/10 − 1/12 =
  12. 12.11/12 + 2/4 =
  13. 13.5/11 − 1/3 =
  14. 14.2/6 + 8/11 =
  15. 15.1/5 + 1/3 =
  16. 16.3/4 + 2/4 =
  17. 17.9/12 − 2/3 =
  18. 18.1/9 + 1/3 =
  19. 19.4/12 − 2/9 =
  20. 20.4/11 + 1/2 =
  21. 21.1/2 + 1/3 =
  22. 22.1/2 + 2/5 =
  23. 23.7/10 − 4/10 =
  24. 24.1/4 + 6/10 =
  25. 25.7/12 + 4/6 =
  26. 26.3/8 + 3/6 =
  27. 27.7/8 − 4/9 =
  28. 28.1/2 − 1/4 =
  29. 29.5/12 + 8/11 =
  30. 30.3/4 + 1/2 =
  31. 31.3/4 − 6/9 =
  32. 32.1/2 + 2/8 =
  33. 33.6/12 + 1/3 =
  34. 34.6/7 − 3/6 =
  35. 35.4/6 + 1/12 =
  36. 36.5/12 + 5/9 =
  37. 37.9/10 − 1/2 =
  38. 38.1/2 + 1/2 =
  39. 39.1/2 + 5/8 =
  40. 40.1/2 − 1/9 =

Answer key

  1. 41/56
  2. 1/3
  3. 1
  4. 7/20
  5. 25/36
  6. 47/40
  7. 22/15
  8. 2/55
  9. 3/4
  10. 7/15
  11. 5/12
  12. 17/12
  13. 4/33
  14. 35/33
  15. 8/15
  16. 5/4
  17. 1/12
  18. 4/9
  19. 1/9
  20. 19/22
  21. 5/6
  22. 9/10
  23. 3/10
  24. 17/20
  25. 5/4
  26. 7/8
  27. 31/72
  28. 1/4
  29. 151/132
  30. 5/4
  31. 1/12
  32. 3/4
  33. 5/6
  34. 5/14
  35. 3/4
  36. 35/36
  37. 2/5
  38. 1
  39. 9/8
  40. 7/18

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