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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 600 · 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. 1.1/2 + 5/8 =
  2. 2.1/2 + 1/2 =
  3. 3.4/10 + 2/12 =
  4. 4.7/8 − 1/5 =
  5. 5.2/5 + 4/12 =
  6. 6.2/3 + 9/10 =
  7. 7.2/4 + 5/10 =
  8. 8.4/5 + 1/8 =
  9. 9.9/10 − 4/8 =
  10. 10.1/2 + 3/9 =
  11. 11.6/9 + 8/10 =
  12. 12.2/4 + 4/6 =
  13. 13.1/5 + 2/12 =
  14. 14.6/10 + 2/3 =
  15. 15.3/4 + 1/5 =
  16. 16.1/5 + 2/8 =
  17. 17.8/11 + 6/9 =
  18. 18.7/11 + 1/4 =
  19. 19.6/10 + 1/8 =
  20. 20.1/2 − 2/7 =
  21. 21.8/11 − 2/8 =
  22. 22.2/3 − 3/5 =
  23. 23.9/10 − 1/6 =
  24. 24.1/2 − 1/5 =
  25. 25.1/3 + 2/8 =
  26. 26.3/5 + 6/8 =
  27. 27.9/10 − 1/2 =
  28. 28.2/9 + 7/11 =
  29. 29.2/3 + 1/6 =
  30. 30.5/6 + 6/11 =
  31. 31.6/11 + 2/6 =
  32. 32.7/11 − 2/11 =
  33. 33.8/11 + 2/8 =
  34. 34.8/10 + 4/8 =
  35. 35.2/9 + 1/11 =
  36. 36.1/11 + 2/5 =
  37. 37.2/5 − 1/6 =
  38. 38.2/4 − 3/8 =
  39. 39.4/9 + 5/9 =
  40. 40.5/9 + 1/10 =

Answer key

  1. 9/8
  2. 1
  3. 17/30
  4. 27/40
  5. 11/15
  6. 47/30
  7. 1
  8. 37/40
  9. 2/5
  10. 5/6
  11. 22/15
  12. 7/6
  13. 11/30
  14. 19/15
  15. 19/20
  16. 9/20
  17. 46/33
  18. 39/44
  19. 29/40
  20. 3/14
  21. 21/44
  22. 1/15
  23. 11/15
  24. 3/10
  25. 7/12
  26. 27/20
  27. 2/5
  28. 85/99
  29. 5/6
  30. 91/66
  31. 29/33
  32. 5/11
  33. 43/44
  34. 13/10
  35. 31/99
  36. 27/55
  37. 7/30
  38. 1/8
  39. 1
  40. 59/90

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