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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 159 · 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. 1.7/8 − 1/9 =
  2. 2.5/9 + 9/12 =
  3. 3.1/12 + 1/12 =
  4. 4.1/2 − 3/11 =
  5. 5.3/5 + 1/12 =
  6. 6.6/9 + 3/5 =
  7. 7.2/4 − 2/12 =
  8. 8.2/3 − 1/3 =
  9. 9.3/5 + 2/11 =
  10. 10.7/8 + 2/7 =
  11. 11.1/3 − 1/7 =
  12. 12.2/3 − 3/5 =
  13. 13.1/3 + 4/6 =
  14. 14.1/9 + 3/5 =
  15. 15.3/6 − 4/10 =
  16. 16.1/2 + 6/9 =
  17. 17.6/11 − 1/2 =
  18. 18.2/3 + 4/11 =
  19. 19.1/2 − 1/4 =
  20. 20.7/9 − 3/4 =
  21. 21.1/7 + 3/4 =
  22. 22.1/10 + 4/8 =
  23. 23.4/7 + 1/8 =
  24. 24.2/5 − 1/6 =
  25. 25.2/3 − 1/2 =
  26. 26.2/4 + 9/12 =
  27. 27.3/11 + 8/10 =
  28. 28.3/10 + 1/2 =
  29. 29.1/3 − 2/11 =
  30. 30.2/7 + 2/7 =
  31. 31.2/8 + 1/2 =
  32. 32.2/3 − 1/12 =
  33. 33.2/9 + 5/6 =
  34. 34.5/6 − 2/8 =
  35. 35.5/6 + 3/7 =
  36. 36.7/8 − 4/5 =
  37. 37.5/6 + 3/6 =
  38. 38.1/2 + 4/5 =
  39. 39.4/6 + 2/11 =
  40. 40.1/2 + 1/2 =

Answer key

  1. 55/72
  2. 47/36
  3. 1/6
  4. 5/22
  5. 41/60
  6. 19/15
  7. 1/3
  8. 1/3
  9. 43/55
  10. 65/56
  11. 4/21
  12. 1/15
  13. 1
  14. 32/45
  15. 1/10
  16. 7/6
  17. 1/22
  18. 34/33
  19. 1/4
  20. 1/36
  21. 25/28
  22. 3/5
  23. 39/56
  24. 7/30
  25. 1/6
  26. 5/4
  27. 59/55
  28. 4/5
  29. 5/33
  30. 4/7
  31. 3/4
  32. 7/12
  33. 19/18
  34. 7/12
  35. 53/42
  36. 3/40
  37. 4/3
  38. 13/10
  39. 28/33
  40. 1

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