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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 571 · 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. 1.5/6 + 6/7 =
  2. 2.4/6 + 8/10 =
  3. 3.1/10 + 3/5 =
  4. 4.5/7 + 3/5 =
  5. 5.7/8 − 4/8 =
  6. 6.4/5 + 1/2 =
  7. 7.2/3 + 2/4 =
  8. 8.7/9 + 10/11 =
  9. 9.5/12 + 1/7 =
  10. 10.4/12 + 1/2 =
  11. 11.1/2 − 2/9 =
  12. 12.2/4 − 3/9 =
  13. 13.5/11 + 2/10 =
  14. 14.8/12 + 5/10 =
  15. 15.4/6 − 1/4 =
  16. 16.4/6 − 1/9 =
  17. 17.3/4 − 2/7 =
  18. 18.1/3 − 1/7 =
  19. 19.5/8 − 1/2 =
  20. 20.3/6 + 1/2 =
  21. 21.7/10 + 3/4 =
  22. 22.8/9 + 2/5 =
  23. 23.2/12 + 1/6 =
  24. 24.4/5 − 1/8 =
  25. 25.6/10 + 3/4 =
  26. 26.4/5 + 3/4 =
  27. 27.2/3 + 1/7 =
  28. 28.3/8 + 1/4 =
  29. 29.2/3 − 5/11 =
  30. 30.3/10 + 4/5 =
  31. 31.5/7 + 1/4 =
  32. 32.2/4 + 8/10 =
  33. 33.7/10 − 1/9 =
  34. 34.2/7 + 2/4 =
  35. 35.2/4 − 2/6 =
  36. 36.4/6 − 3/12 =
  37. 37.10/12 − 2/4 =
  38. 38.6/7 + 1/3 =
  39. 39.3/4 + 1/3 =
  40. 40.6/9 + 5/8 =

Answer key

  1. 71/42
  2. 22/15
  3. 7/10
  4. 46/35
  5. 3/8
  6. 13/10
  7. 7/6
  8. 167/99
  9. 47/84
  10. 5/6
  11. 5/18
  12. 1/6
  13. 36/55
  14. 7/6
  15. 5/12
  16. 5/9
  17. 13/28
  18. 4/21
  19. 1/8
  20. 1
  21. 29/20
  22. 58/45
  23. 1/3
  24. 27/40
  25. 27/20
  26. 31/20
  27. 17/21
  28. 5/8
  29. 7/33
  30. 11/10
  31. 27/28
  32. 13/10
  33. 53/90
  34. 11/14
  35. 1/6
  36. 5/12
  37. 1/3
  38. 25/21
  39. 13/12
  40. 31/24

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