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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 769 · 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. 1.1/2 − 1/4 =
  2. 2.6/8 + 1/8 =
  3. 3.2/5 + 3/6 =
  4. 4.1/2 + 4/11 =
  5. 5.6/12 + 4/5 =
  6. 6.8/11 + 8/9 =
  7. 7.4/7 − 1/4 =
  8. 8.1/9 + 1/3 =
  9. 9.2/5 + 3/9 =
  10. 10.1/2 + 5/7 =
  11. 11.9/11 − 1/2 =
  12. 12.2/3 − 1/7 =
  13. 13.4/12 + 1/9 =
  14. 14.1/2 + 1/2 =
  15. 15.1/3 − 1/4 =
  16. 16.3/4 + 4/10 =
  17. 17.4/8 − 2/12 =
  18. 18.2/3 − 1/5 =
  19. 19.3/4 + 7/10 =
  20. 20.1/10 + 2/7 =
  21. 21.2/5 + 5/10 =
  22. 22.2/5 + 2/3 =
  23. 23.2/3 + 4/9 =
  24. 24.9/11 − 1/5 =
  25. 25.1/3 + 10/12 =
  26. 26.8/11 − 4/10 =
  27. 27.7/8 − 1/5 =
  28. 28.1/3 + 4/6 =
  29. 29.2/5 + 1/7 =
  30. 30.3/4 + 1/2 =
  31. 31.1/3 + 6/12 =
  32. 32.1/5 + 5/10 =
  33. 33.6/9 − 4/8 =
  34. 34.6/9 − 3/6 =
  35. 35.2/3 + 1/4 =
  36. 36.1/3 − 2/11 =
  37. 37.7/11 − 2/6 =
  38. 38.4/5 + 2/4 =
  39. 39.5/12 + 2/6 =
  40. 40.10/12 − 9/11 =

Answer key

  1. 1/4
  2. 7/8
  3. 9/10
  4. 19/22
  5. 13/10
  6. 160/99
  7. 9/28
  8. 4/9
  9. 11/15
  10. 17/14
  11. 7/22
  12. 11/21
  13. 4/9
  14. 1
  15. 1/12
  16. 23/20
  17. 1/3
  18. 7/15
  19. 29/20
  20. 27/70
  21. 9/10
  22. 16/15
  23. 10/9
  24. 34/55
  25. 7/6
  26. 18/55
  27. 27/40
  28. 1
  29. 19/35
  30. 5/4
  31. 5/6
  32. 7/10
  33. 1/6
  34. 1/6
  35. 11/12
  36. 5/33
  37. 10/33
  38. 13/10
  39. 3/4
  40. 1/66

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