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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 592 · 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. 1.2/11 + 2/9 =
  2. 2.2/4 + 4/8 =
  3. 3.1/8 + 1/9 =
  4. 4.5/8 + 1/3 =
  5. 5.5/6 − 1/7 =
  6. 6.1/11 − 1/12 =
  7. 7.3/10 − 1/11 =
  8. 8.5/9 + 3/7 =
  9. 9.10/12 + 5/8 =
  10. 10.4/8 + 2/3 =
  11. 11.1/5 + 1/5 =
  12. 12.5/10 + 1/2 =
  13. 13.2/9 + 8/9 =
  14. 14.11/12 − 2/6 =
  15. 15.11/12 − 2/3 =
  16. 16.6/7 + 2/7 =
  17. 17.3/4 + 1/2 =
  18. 18.4/11 + 5/10 =
  19. 19.1/2 + 4/6 =
  20. 20.3/4 + 2/4 =
  21. 21.1/3 + 1/4 =
  22. 22.6/7 − 1/3 =
  23. 23.7/8 − 4/7 =
  24. 24.8/10 − 1/4 =
  25. 25.3/7 + 1/3 =
  26. 26.6/7 + 1/5 =
  27. 27.6/10 − 1/5 =
  28. 28.8/9 + 3/8 =
  29. 29.2/7 + 1/2 =
  30. 30.1/3 − 2/8 =
  31. 31.4/10 + 9/10 =
  32. 32.5/6 + 6/10 =
  33. 33.1/2 + 5/6 =
  34. 34.10/11 − 2/9 =
  35. 35.3/4 + 2/6 =
  36. 36.3/4 − 1/3 =
  37. 37.1/2 + 1/3 =
  38. 38.1/11 + 5/11 =
  39. 39.1/2 − 2/9 =
  40. 40.2/10 + 1/11 =

Answer key

  1. 40/99
  2. 1
  3. 17/72
  4. 23/24
  5. 29/42
  6. 1/132
  7. 23/110
  8. 62/63
  9. 35/24
  10. 7/6
  11. 2/5
  12. 1
  13. 10/9
  14. 7/12
  15. 1/4
  16. 8/7
  17. 5/4
  18. 19/22
  19. 7/6
  20. 5/4
  21. 7/12
  22. 11/21
  23. 17/56
  24. 11/20
  25. 16/21
  26. 37/35
  27. 2/5
  28. 91/72
  29. 11/14
  30. 1/12
  31. 13/10
  32. 43/30
  33. 4/3
  34. 68/99
  35. 13/12
  36. 5/12
  37. 5/6
  38. 6/11
  39. 5/18
  40. 16/55

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