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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 351 · 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. 1.4/5 + 1/3 =
  2. 2.5/6 + 1/10 =
  3. 3.4/7 + 8/9 =
  4. 4.2/7 + 9/11 =
  5. 5.1/11 − 1/12 =
  6. 6.5/7 + 6/8 =
  7. 7.1/2 + 1/2 =
  8. 8.9/12 + 2/4 =
  9. 9.1/2 + 1/5 =
  10. 10.1/2 + 5/11 =
  11. 11.9/10 − 6/9 =
  12. 12.1/5 + 5/12 =
  13. 13.1/3 − 2/10 =
  14. 14.9/12 + 5/6 =
  15. 15.3/5 − 2/8 =
  16. 16.2/5 + 6/12 =
  17. 17.5/7 + 2/4 =
  18. 18.7/10 − 1/9 =
  19. 19.2/9 + 1/2 =
  20. 20.5/6 + 1/4 =
  21. 21.3/7 + 1/2 =
  22. 22.6/10 − 1/7 =
  23. 23.9/12 + 2/11 =
  24. 24.3/8 + 1/3 =
  25. 25.1/6 + 3/4 =
  26. 26.2/4 + 1/7 =
  27. 27.4/9 − 1/8 =
  28. 28.11/12 + 1/12 =
  29. 29.5/6 + 2/8 =
  30. 30.7/11 + 3/6 =
  31. 31.7/11 + 1/3 =
  32. 32.5/9 + 5/7 =
  33. 33.3/4 + 2/4 =
  34. 34.1/4 − 1/6 =
  35. 35.5/8 + 5/10 =
  36. 36.6/12 + 7/11 =
  37. 37.4/5 − 3/5 =
  38. 38.3/8 − 1/9 =
  39. 39.7/11 − 2/12 =
  40. 40.3/10 − 1/9 =

Answer key

  1. 17/15
  2. 14/15
  3. 92/63
  4. 85/77
  5. 1/132
  6. 41/28
  7. 1
  8. 5/4
  9. 7/10
  10. 21/22
  11. 7/30
  12. 37/60
  13. 2/15
  14. 19/12
  15. 7/20
  16. 9/10
  17. 17/14
  18. 53/90
  19. 13/18
  20. 13/12
  21. 13/14
  22. 16/35
  23. 41/44
  24. 17/24
  25. 11/12
  26. 9/14
  27. 23/72
  28. 1
  29. 13/12
  30. 25/22
  31. 32/33
  32. 80/63
  33. 5/4
  34. 1/12
  35. 9/8
  36. 25/22
  37. 1/5
  38. 19/72
  39. 31/66
  40. 17/90

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