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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 820 · 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. 1.5/8 + 1/4 =
  2. 2.1/3 + 7/9 =
  3. 3.1/2 − 1/5 =
  4. 4.1/2 + 1/12 =
  5. 5.1/6 + 2/8 =
  6. 6.2/3 + 2/7 =
  7. 7.10/12 − 2/5 =
  8. 8.1/6 + 2/3 =
  9. 9.2/5 − 1/8 =
  10. 10.1/12 + 3/5 =
  11. 11.4/12 − 1/6 =
  12. 12.4/8 − 5/12 =
  13. 13.4/9 + 7/10 =
  14. 14.4/5 − 1/2 =
  15. 15.1/3 + 1/5 =
  16. 16.8/9 − 2/4 =
  17. 17.1/7 + 5/12 =
  18. 18.1/5 + 1/2 =
  19. 19.3/7 + 4/8 =
  20. 20.1/12 + 2/3 =
  21. 21.1/3 + 2/3 =
  22. 22.1/2 + 1/4 =
  23. 23.1/10 + 8/10 =
  24. 24.1/2 + 4/5 =
  25. 25.2/3 + 2/3 =
  26. 26.3/5 + 1/2 =
  27. 27.2/9 + 3/6 =
  28. 28.3/6 − 1/4 =
  29. 29.4/5 − 2/3 =
  30. 30.1/5 + 10/11 =
  31. 31.6/8 − 2/7 =
  32. 32.2/5 − 2/6 =
  33. 33.2/5 + 2/10 =
  34. 34.7/10 + 1/5 =
  35. 35.4/5 + 2/8 =
  36. 36.3/5 + 2/3 =
  37. 37.3/10 + 11/12 =
  38. 38.1/12 + 1/7 =
  39. 39.7/9 − 4/11 =
  40. 40.1/2 + 6/9 =

Answer key

  1. 7/8
  2. 10/9
  3. 3/10
  4. 7/12
  5. 5/12
  6. 20/21
  7. 13/30
  8. 5/6
  9. 11/40
  10. 41/60
  11. 1/6
  12. 1/12
  13. 103/90
  14. 3/10
  15. 8/15
  16. 7/18
  17. 47/84
  18. 7/10
  19. 13/14
  20. 3/4
  21. 1
  22. 3/4
  23. 9/10
  24. 13/10
  25. 4/3
  26. 11/10
  27. 13/18
  28. 1/4
  29. 2/15
  30. 61/55
  31. 13/28
  32. 1/15
  33. 3/5
  34. 9/10
  35. 21/20
  36. 19/15
  37. 73/60
  38. 19/84
  39. 41/99
  40. 7/6

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