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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 558 · 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 + 1/2 =
  2. 2.6/9 − 1/2 =
  3. 3.5/7 − 4/8 =
  4. 4.1/2 + 1/2 =
  5. 5.3/7 + 1/7 =
  6. 6.1/4 + 7/8 =
  7. 7.5/11 − 1/5 =
  8. 8.5/7 − 1/6 =
  9. 9.7/11 + 2/4 =
  10. 10.2/6 − 2/8 =
  11. 11.3/4 + 1/2 =
  12. 12.1/2 + 1/6 =
  13. 13.1/2 − 2/7 =
  14. 14.4/7 + 3/8 =
  15. 15.6/8 − 2/7 =
  16. 16.4/5 + 2/9 =
  17. 17.2/8 + 4/5 =
  18. 18.1/2 − 4/12 =
  19. 19.5/10 − 1/12 =
  20. 20.4/7 − 2/9 =
  21. 21.2/3 − 3/6 =
  22. 22.4/10 + 1/12 =
  23. 23.2/12 − 1/8 =
  24. 24.1/2 + 5/8 =
  25. 25.10/12 + 7/11 =
  26. 26.1/2 − 1/10 =
  27. 27.9/10 + 3/6 =
  28. 28.4/6 + 2/11 =
  29. 29.2/11 + 8/9 =
  30. 30.7/8 − 4/5 =
  31. 31.1/7 + 9/12 =
  32. 32.1/3 + 1/3 =
  33. 33.1/3 − 1/8 =
  34. 34.1/3 + 1/2 =
  35. 35.3/5 − 1/2 =
  36. 36.1/3 + 1/3 =
  37. 37.3/10 + 4/6 =
  38. 38.6/9 + 4/8 =
  39. 39.6/8 + 3/12 =
  40. 40.2/3 − 1/2 =

Answer key

  1. 1
  2. 1/6
  3. 3/14
  4. 1
  5. 4/7
  6. 9/8
  7. 14/55
  8. 23/42
  9. 25/22
  10. 1/12
  11. 5/4
  12. 2/3
  13. 3/14
  14. 53/56
  15. 13/28
  16. 46/45
  17. 21/20
  18. 1/6
  19. 5/12
  20. 22/63
  21. 1/6
  22. 29/60
  23. 1/24
  24. 9/8
  25. 97/66
  26. 2/5
  27. 7/5
  28. 28/33
  29. 106/99
  30. 3/40
  31. 25/28
  32. 2/3
  33. 5/24
  34. 5/6
  35. 1/10
  36. 2/3
  37. 29/30
  38. 7/6
  39. 1
  40. 1/6

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