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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 904 · 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. 1.7/8 − 1/2 =
  2. 2.1/2 + 1/9 =
  3. 3.1/2 + 1/2 =
  4. 4.2/4 − 1/4 =
  5. 5.2/3 + 3/10 =
  6. 6.6/8 + 2/5 =
  7. 7.1/3 − 1/4 =
  8. 8.8/10 − 5/12 =
  9. 9.1/9 + 1/5 =
  10. 10.2/4 + 2/3 =
  11. 11.2/9 + 2/4 =
  12. 12.4/7 − 2/12 =
  13. 13.1/2 − 3/8 =
  14. 14.1/2 + 4/10 =
  15. 15.4/6 + 6/8 =
  16. 16.1/7 + 6/9 =
  17. 17.5/10 + 1/2 =
  18. 18.7/9 − 2/5 =
  19. 19.2/5 + 3/7 =
  20. 20.1/7 + 1/4 =
  21. 21.8/12 + 4/7 =
  22. 22.3/7 + 7/9 =
  23. 23.4/5 − 6/8 =
  24. 24.2/3 − 1/3 =
  25. 25.6/10 + 1/2 =
  26. 26.6/10 − 2/6 =
  27. 27.2/5 + 1/5 =
  28. 28.5/6 − 1/9 =
  29. 29.1/2 + 2/4 =
  30. 30.4/5 + 7/8 =
  31. 31.4/10 − 1/4 =
  32. 32.3/4 − 5/12 =
  33. 33.1/4 + 1/4 =
  34. 34.3/7 + 7/11 =
  35. 35.3/6 + 2/8 =
  36. 36.6/8 − 1/5 =
  37. 37.2/8 + 1/7 =
  38. 38.8/9 + 1/3 =
  39. 39.1/9 + 2/7 =
  40. 40.8/9 + 3/9 =

Answer key

  1. 3/8
  2. 11/18
  3. 1
  4. 1/4
  5. 29/30
  6. 23/20
  7. 1/12
  8. 23/60
  9. 14/45
  10. 7/6
  11. 13/18
  12. 17/42
  13. 1/8
  14. 9/10
  15. 17/12
  16. 17/21
  17. 1
  18. 17/45
  19. 29/35
  20. 11/28
  21. 26/21
  22. 76/63
  23. 1/20
  24. 1/3
  25. 11/10
  26. 4/15
  27. 3/5
  28. 13/18
  29. 1
  30. 67/40
  31. 3/20
  32. 1/3
  33. 1/2
  34. 82/77
  35. 3/4
  36. 11/20
  37. 11/28
  38. 11/9
  39. 25/63
  40. 11/9

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