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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 848 · 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. 1.1/3 + 1/4 =
  2. 2.2/3 + 1/4 =
  3. 3.2/3 + 2/3 =
  4. 4.1/7 + 2/7 =
  5. 5.5/6 + 5/6 =
  6. 6.2/10 + 1/2 =
  7. 7.1/6 + 1/3 =
  8. 8.8/9 − 1/2 =
  9. 9.3/8 + 3/8 =
  10. 10.3/8 + 1/8 =
  11. 11.4/12 + 1/5 =
  12. 12.1/8 + 3/12 =
  13. 13.1/5 + 2/5 =
  14. 14.1/11 + 5/6 =
  15. 15.2/5 − 2/8 =
  16. 16.10/12 − 1/4 =
  17. 17.3/7 + 3/8 =
  18. 18.5/6 − 3/4 =
  19. 19.2/4 + 2/6 =
  20. 20.4/7 − 3/12 =
  21. 21.3/5 + 5/9 =
  22. 22.3/8 + 1/11 =
  23. 23.7/10 − 1/2 =
  24. 24.5/6 + 2/12 =
  25. 25.6/9 − 1/3 =
  26. 26.7/9 − 3/4 =
  27. 27.8/10 + 5/8 =
  28. 28.3/4 + 3/7 =
  29. 29.1/3 + 5/7 =
  30. 30.4/5 + 3/5 =
  31. 31.2/3 + 1/3 =
  32. 32.2/7 − 1/5 =
  33. 33.1/5 + 1/8 =
  34. 34.1/2 + 4/8 =
  35. 35.1/2 + 11/12 =
  36. 36.1/6 + 6/11 =
  37. 37.7/11 − 3/11 =
  38. 38.1/10 + 3/7 =
  39. 39.4/12 − 3/12 =
  40. 40.1/11 + 5/12 =

Answer key

  1. 7/12
  2. 11/12
  3. 4/3
  4. 3/7
  5. 5/3
  6. 7/10
  7. 1/2
  8. 7/18
  9. 3/4
  10. 1/2
  11. 8/15
  12. 3/8
  13. 3/5
  14. 61/66
  15. 3/20
  16. 7/12
  17. 45/56
  18. 1/12
  19. 5/6
  20. 9/28
  21. 52/45
  22. 41/88
  23. 1/5
  24. 1
  25. 1/3
  26. 1/36
  27. 57/40
  28. 33/28
  29. 22/21
  30. 7/5
  31. 1
  32. 3/35
  33. 13/40
  34. 1
  35. 17/12
  36. 47/66
  37. 4/11
  38. 37/70
  39. 1/12
  40. 67/132

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