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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 991 · 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 + 1/2 =
  2. 2.1/3 + 1/2 =
  3. 3.3/4 + 1/8 =
  4. 4.10/11 + 1/12 =
  5. 5.4/7 + 5/8 =
  6. 6.1/3 + 3/9 =
  7. 7.4/10 + 1/7 =
  8. 8.2/4 − 1/4 =
  9. 9.6/10 + 3/10 =
  10. 10.2/12 + 1/2 =
  11. 11.1/12 + 5/9 =
  12. 12.3/4 + 9/10 =
  13. 13.4/6 − 1/4 =
  14. 14.3/5 − 2/7 =
  15. 15.2/4 + 3/4 =
  16. 16.1/2 + 6/7 =
  17. 17.2/3 − 1/2 =
  18. 18.4/6 + 10/11 =
  19. 19.1/5 + 1/3 =
  20. 20.2/3 + 6/9 =
  21. 21.10/12 + 9/10 =
  22. 22.3/9 + 2/8 =
  23. 23.1/3 − 2/10 =
  24. 24.3/12 + 3/10 =
  25. 25.2/10 + 5/9 =
  26. 26.6/7 + 5/12 =
  27. 27.1/2 + 1/2 =
  28. 28.1/5 − 1/9 =
  29. 29.1/11 + 5/8 =
  30. 30.1/4 − 1/5 =
  31. 31.5/8 − 1/2 =
  32. 32.3/10 − 2/9 =
  33. 33.6/7 + 1/4 =
  34. 34.4/7 + 1/2 =
  35. 35.2/3 − 1/12 =
  36. 36.4/12 − 1/8 =
  37. 37.6/8 − 4/7 =
  38. 38.7/12 − 3/6 =
  39. 39.10/11 − 4/10 =
  40. 40.9/10 + 1/2 =

Answer key

  1. 13/10
  2. 5/6
  3. 7/8
  4. 131/132
  5. 67/56
  6. 2/3
  7. 19/35
  8. 1/4
  9. 9/10
  10. 2/3
  11. 23/36
  12. 33/20
  13. 5/12
  14. 11/35
  15. 5/4
  16. 19/14
  17. 1/6
  18. 52/33
  19. 8/15
  20. 4/3
  21. 26/15
  22. 7/12
  23. 2/15
  24. 11/20
  25. 34/45
  26. 107/84
  27. 1
  28. 4/45
  29. 63/88
  30. 1/20
  31. 1/8
  32. 7/90
  33. 31/28
  34. 15/14
  35. 7/12
  36. 5/24
  37. 5/28
  38. 1/12
  39. 28/55
  40. 7/5

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