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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 559 · 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. 1.2/12 + 9/10 =
  2. 2.10/11 − 1/3 =
  3. 3.2/11 + 1/4 =
  4. 4.3/5 + 11/12 =
  5. 5.1/3 + 1/3 =
  6. 6.1/3 − 2/9 =
  7. 7.5/9 + 3/7 =
  8. 8.3/4 − 1/11 =
  9. 9.8/10 + 1/4 =
  10. 10.3/4 − 1/6 =
  11. 11.4/7 − 1/6 =
  12. 12.6/7 + 5/8 =
  13. 13.7/11 + 5/7 =
  14. 14.2/10 − 2/11 =
  15. 15.1/2 − 1/3 =
  16. 16.1/2 + 1/2 =
  17. 17.4/6 − 3/10 =
  18. 18.8/9 − 1/8 =
  19. 19.4/5 + 6/11 =
  20. 20.5/8 − 1/4 =
  21. 21.1/2 + 6/12 =
  22. 22.4/5 − 3/4 =
  23. 23.7/12 + 2/3 =
  24. 24.3/9 + 3/8 =
  25. 25.3/12 + 2/8 =
  26. 26.1/10 + 1/3 =
  27. 27.7/8 − 1/3 =
  28. 28.2/3 + 5/10 =
  29. 29.7/10 − 2/5 =
  30. 30.6/8 − 1/2 =
  31. 31.5/6 − 2/10 =
  32. 32.5/8 + 1/3 =
  33. 33.1/3 + 3/6 =
  34. 34.3/4 − 2/11 =
  35. 35.10/12 − 3/6 =
  36. 36.1/4 + 1/4 =
  37. 37.4/8 + 4/6 =
  38. 38.2/4 − 1/10 =
  39. 39.6/9 − 1/6 =
  40. 40.4/12 + 2/3 =

Answer key

  1. 16/15
  2. 19/33
  3. 19/44
  4. 91/60
  5. 2/3
  6. 1/9
  7. 62/63
  8. 29/44
  9. 21/20
  10. 7/12
  11. 17/42
  12. 83/56
  13. 104/77
  14. 1/55
  15. 1/6
  16. 1
  17. 11/30
  18. 55/72
  19. 74/55
  20. 3/8
  21. 1
  22. 1/20
  23. 5/4
  24. 17/24
  25. 1/2
  26. 13/30
  27. 13/24
  28. 7/6
  29. 3/10
  30. 1/4
  31. 19/30
  32. 23/24
  33. 5/6
  34. 25/44
  35. 1/3
  36. 1/2
  37. 7/6
  38. 2/5
  39. 1/2
  40. 1

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