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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 445 · 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. 1.2/4 + 8/12 =
  2. 2.4/5 + 1/3 =
  3. 3.4/10 + 6/8 =
  4. 4.4/11 + 2/12 =
  5. 5.2/3 + 4/10 =
  6. 6.2/12 + 3/5 =
  7. 7.10/12 + 6/12 =
  8. 8.6/8 − 1/2 =
  9. 9.8/9 + 1/8 =
  10. 10.2/3 − 3/5 =
  11. 11.8/10 + 1/3 =
  12. 12.5/10 + 4/10 =
  13. 13.3/9 + 3/5 =
  14. 14.4/12 − 1/4 =
  15. 15.8/12 + 2/3 =
  16. 16.9/12 + 2/3 =
  17. 17.4/8 + 1/2 =
  18. 18.3/5 − 6/11 =
  19. 19.2/3 + 2/3 =
  20. 20.2/4 + 1/6 =
  21. 21.1/3 − 1/6 =
  22. 22.9/12 + 3/4 =
  23. 23.3/5 − 1/6 =
  24. 24.3/4 + 2/3 =
  25. 25.4/10 + 7/9 =
  26. 26.9/12 − 3/9 =
  27. 27.3/11 − 1/5 =
  28. 28.4/12 + 2/8 =
  29. 29.6/10 + 1/2 =
  30. 30.1/12 + 2/3 =
  31. 31.3/4 + 3/5 =
  32. 32.1/4 + 5/8 =
  33. 33.1/3 − 1/12 =
  34. 34.6/8 + 1/4 =
  35. 35.4/11 − 1/9 =
  36. 36.2/6 + 5/6 =
  37. 37.1/2 + 6/12 =
  38. 38.4/8 − 2/5 =
  39. 39.3/4 + 1/3 =
  40. 40.10/12 − 1/9 =

Answer key

  1. 7/6
  2. 17/15
  3. 23/20
  4. 35/66
  5. 16/15
  6. 23/30
  7. 4/3
  8. 1/4
  9. 73/72
  10. 1/15
  11. 17/15
  12. 9/10
  13. 14/15
  14. 1/12
  15. 4/3
  16. 17/12
  17. 1
  18. 3/55
  19. 4/3
  20. 2/3
  21. 1/6
  22. 3/2
  23. 13/30
  24. 17/12
  25. 53/45
  26. 5/12
  27. 4/55
  28. 7/12
  29. 11/10
  30. 3/4
  31. 27/20
  32. 7/8
  33. 1/4
  34. 1
  35. 25/99
  36. 7/6
  37. 1
  38. 1/10
  39. 13/12
  40. 13/18

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