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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 736 · 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. 1.2/3 + 10/11 =
  2. 2.11/12 + 4/7 =
  3. 3.1/5 + 1/6 =
  4. 4.5/6 + 1/5 =
  5. 5.4/5 − 1/4 =
  6. 6.6/9 + 4/5 =
  7. 7.11/12 + 4/6 =
  8. 8.2/6 + 3/4 =
  9. 9.8/10 − 1/2 =
  10. 10.1/2 + 4/8 =
  11. 11.4/9 − 2/9 =
  12. 12.1/4 − 1/6 =
  13. 13.5/8 − 5/12 =
  14. 14.2/5 + 1/12 =
  15. 15.1/2 − 2/5 =
  16. 16.5/9 − 3/11 =
  17. 17.5/8 − 5/10 =
  18. 18.1/2 + 8/12 =
  19. 19.5/6 − 1/4 =
  20. 20.4/6 + 3/7 =
  21. 21.7/11 − 3/9 =
  22. 22.1/6 + 9/12 =
  23. 23.2/5 − 2/6 =
  24. 24.1/5 + 4/6 =
  25. 25.1/4 + 9/10 =
  26. 26.9/12 + 1/4 =
  27. 27.8/11 − 5/8 =
  28. 28.3/5 + 3/4 =
  29. 29.10/11 − 7/11 =
  30. 30.1/3 + 2/10 =
  31. 31.6/11 − 3/11 =
  32. 32.3/6 + 3/4 =
  33. 33.6/9 + 1/2 =
  34. 34.1/7 + 3/4 =
  35. 35.4/5 + 1/7 =
  36. 36.6/9 + 1/2 =
  37. 37.2/9 + 3/11 =
  38. 38.5/9 − 4/9 =
  39. 39.1/2 − 4/9 =
  40. 40.3/11 − 1/7 =

Answer key

  1. 52/33
  2. 125/84
  3. 11/30
  4. 31/30
  5. 11/20
  6. 22/15
  7. 19/12
  8. 13/12
  9. 3/10
  10. 1
  11. 2/9
  12. 1/12
  13. 5/24
  14. 29/60
  15. 1/10
  16. 28/99
  17. 1/8
  18. 7/6
  19. 7/12
  20. 23/21
  21. 10/33
  22. 11/12
  23. 1/15
  24. 13/15
  25. 23/20
  26. 1
  27. 9/88
  28. 27/20
  29. 3/11
  30. 8/15
  31. 3/11
  32. 5/4
  33. 7/6
  34. 25/28
  35. 33/35
  36. 7/6
  37. 49/99
  38. 1/9
  39. 1/18
  40. 10/77

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