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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 999 · 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. 1.3/9 + 7/9 =
  2. 2.1/7 + 2/4 =
  3. 3.1/2 + 4/6 =
  4. 4.1/4 + 1/8 =
  5. 5.1/3 + 2/8 =
  6. 6.7/9 + 6/12 =
  7. 7.3/5 + 1/3 =
  8. 8.3/6 + 1/2 =
  9. 9.1/2 − 1/3 =
  10. 10.5/9 + 1/7 =
  11. 11.1/2 + 1/12 =
  12. 12.1/10 + 3/9 =
  13. 13.6/7 + 1/8 =
  14. 14.2/4 + 1/3 =
  15. 15.8/9 − 3/4 =
  16. 16.1/4 − 1/5 =
  17. 17.2/7 + 5/11 =
  18. 18.1/3 + 1/2 =
  19. 19.2/11 + 5/11 =
  20. 20.10/11 − 1/3 =
  21. 21.6/7 − 5/9 =
  22. 22.7/8 − 1/9 =
  23. 23.7/10 + 1/2 =
  24. 24.3/8 + 4/10 =
  25. 25.11/12 + 1/4 =
  26. 26.3/4 − 4/11 =
  27. 27.6/7 − 5/10 =
  28. 28.8/9 − 2/12 =
  29. 29.3/5 + 3/10 =
  30. 30.1/4 + 9/11 =
  31. 31.2/6 + 11/12 =
  32. 32.5/9 − 1/2 =
  33. 33.1/3 + 5/11 =
  34. 34.2/5 − 1/3 =
  35. 35.3/4 − 1/12 =
  36. 36.1/5 − 1/6 =
  37. 37.4/5 + 1/2 =
  38. 38.1/2 + 1/2 =
  39. 39.1/2 + 1/3 =
  40. 40.3/9 + 6/7 =

Answer key

  1. 10/9
  2. 9/14
  3. 7/6
  4. 3/8
  5. 7/12
  6. 23/18
  7. 14/15
  8. 1
  9. 1/6
  10. 44/63
  11. 7/12
  12. 13/30
  13. 55/56
  14. 5/6
  15. 5/36
  16. 1/20
  17. 57/77
  18. 5/6
  19. 7/11
  20. 19/33
  21. 19/63
  22. 55/72
  23. 6/5
  24. 31/40
  25. 7/6
  26. 17/44
  27. 5/14
  28. 13/18
  29. 9/10
  30. 47/44
  31. 5/4
  32. 1/18
  33. 26/33
  34. 1/15
  35. 2/3
  36. 1/30
  37. 13/10
  38. 1
  39. 5/6
  40. 25/21

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