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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 588 · 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. 1.7/11 + 3/6 =
  2. 2.2/10 + 1/2 =
  3. 3.3/5 + 4/7 =
  4. 4.2/7 + 1/4 =
  5. 5.5/10 + 4/10 =
  6. 6.3/7 − 2/8 =
  7. 7.4/7 − 1/6 =
  8. 8.1/5 + 2/3 =
  9. 9.6/7 + 2/4 =
  10. 10.1/4 + 2/10 =
  11. 11.4/8 + 1/3 =
  12. 12.1/4 + 7/9 =
  13. 13.6/7 + 3/10 =
  14. 14.1/3 + 1/2 =
  15. 15.2/3 + 1/2 =
  16. 16.5/7 + 2/3 =
  17. 17.2/5 − 1/4 =
  18. 18.4/7 − 2/5 =
  19. 19.5/6 − 6/10 =
  20. 20.3/9 + 8/10 =
  21. 21.7/11 + 1/2 =
  22. 22.6/11 + 3/8 =
  23. 23.1/6 + 1/3 =
  24. 24.7/9 − 1/10 =
  25. 25.1/3 + 1/3 =
  26. 26.2/3 + 7/9 =
  27. 27.9/11 − 3/9 =
  28. 28.3/9 + 2/7 =
  29. 29.6/7 + 9/10 =
  30. 30.2/3 − 1/3 =
  31. 31.5/8 + 3/10 =
  32. 32.1/4 + 5/11 =
  33. 33.3/5 − 1/6 =
  34. 34.1/2 + 3/5 =
  35. 35.2/4 − 4/12 =
  36. 36.10/12 − 3/11 =
  37. 37.6/7 − 2/3 =
  38. 38.4/12 + 2/4 =
  39. 39.3/9 + 4/12 =
  40. 40.6/12 + 1/2 =

Answer key

  1. 25/22
  2. 7/10
  3. 41/35
  4. 15/28
  5. 9/10
  6. 5/28
  7. 17/42
  8. 13/15
  9. 19/14
  10. 9/20
  11. 5/6
  12. 37/36
  13. 81/70
  14. 5/6
  15. 7/6
  16. 29/21
  17. 3/20
  18. 6/35
  19. 7/30
  20. 17/15
  21. 25/22
  22. 81/88
  23. 1/2
  24. 61/90
  25. 2/3
  26. 13/9
  27. 16/33
  28. 13/21
  29. 123/70
  30. 1/3
  31. 37/40
  32. 31/44
  33. 13/30
  34. 11/10
  35. 1/6
  36. 37/66
  37. 4/21
  38. 5/6
  39. 2/3
  40. 1

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