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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 940 · 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 + 1/3 =
  2. 2.2/7 + 2/8 =
  3. 3.7/12 − 1/2 =
  4. 4.6/8 − 3/5 =
  5. 5.3/10 + 1/4 =
  6. 6.2/8 + 1/2 =
  7. 7.4/5 − 1/7 =
  8. 8.1/2 − 4/11 =
  9. 9.1/2 + 1/10 =
  10. 10.10/12 − 1/2 =
  11. 11.5/11 + 3/4 =
  12. 12.3/4 + 4/8 =
  13. 13.1/2 − 1/9 =
  14. 14.1/3 + 3/5 =
  15. 15.2/11 + 2/10 =
  16. 16.2/3 − 2/9 =
  17. 17.10/11 + 2/4 =
  18. 18.10/11 − 8/12 =
  19. 19.3/4 − 1/3 =
  20. 20.5/7 − 1/8 =
  21. 21.2/3 + 2/12 =
  22. 22.3/5 − 3/7 =
  23. 23.7/10 − 2/4 =
  24. 24.1/2 + 2/4 =
  25. 25.4/11 + 1/5 =
  26. 26.1/3 + 2/7 =
  27. 27.2/3 − 1/7 =
  28. 28.3/4 + 1/6 =
  29. 29.8/10 + 4/7 =
  30. 30.3/4 − 1/7 =
  31. 31.5/7 + 4/6 =
  32. 32.5/6 − 1/2 =
  33. 33.2/4 + 3/9 =
  34. 34.10/11 + 3/6 =
  35. 35.1/2 + 1/5 =
  36. 36.2/4 + 9/11 =
  37. 37.1/2 + 5/7 =
  38. 38.3/4 + 3/7 =
  39. 39.4/6 + 5/10 =
  40. 40.3/7 + 2/6 =

Answer key

  1. 5/6
  2. 15/28
  3. 1/12
  4. 3/20
  5. 11/20
  6. 3/4
  7. 23/35
  8. 3/22
  9. 3/5
  10. 1/3
  11. 53/44
  12. 5/4
  13. 7/18
  14. 14/15
  15. 21/55
  16. 4/9
  17. 31/22
  18. 8/33
  19. 5/12
  20. 33/56
  21. 5/6
  22. 6/35
  23. 1/5
  24. 1
  25. 31/55
  26. 13/21
  27. 11/21
  28. 11/12
  29. 48/35
  30. 17/28
  31. 29/21
  32. 1/3
  33. 5/6
  34. 31/22
  35. 7/10
  36. 29/22
  37. 17/14
  38. 33/28
  39. 7/6
  40. 16/21

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