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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 908 · 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 − 1/12 =
  2. 2.4/7 − 3/7 =
  3. 3.5/6 − 1/3 =
  4. 4.7/9 + 1/5 =
  5. 5.8/9 + 1/2 =
  6. 6.1/2 − 1/3 =
  7. 7.8/9 − 6/10 =
  8. 8.1/2 − 2/5 =
  9. 9.9/12 + 1/2 =
  10. 10.2/3 − 3/5 =
  11. 11.2/3 − 4/9 =
  12. 12.3/8 + 5/10 =
  13. 13.7/9 + 3/12 =
  14. 14.1/4 + 1/2 =
  15. 15.1/10 + 8/12 =
  16. 16.1/8 + 1/3 =
  17. 17.2/3 − 1/2 =
  18. 18.10/11 − 5/11 =
  19. 19.10/11 − 2/8 =
  20. 20.2/4 + 4/7 =
  21. 21.3/6 + 1/2 =
  22. 22.1/7 + 3/5 =
  23. 23.1/4 + 1/12 =
  24. 24.3/11 + 8/10 =
  25. 25.2/10 + 5/11 =
  26. 26.6/7 + 3/4 =
  27. 27.2/4 + 3/4 =
  28. 28.3/6 + 2/12 =
  29. 29.2/6 − 1/8 =
  30. 30.5/6 + 2/12 =
  31. 31.3/9 + 4/9 =
  32. 32.5/6 − 8/12 =
  33. 33.1/5 + 7/12 =
  34. 34.1/10 + 3/4 =
  35. 35.1/4 + 5/8 =
  36. 36.1/2 + 3/6 =
  37. 37.5/6 + 7/11 =
  38. 38.2/3 − 1/2 =
  39. 39.1/2 − 1/10 =
  40. 40.4/7 + 6/12 =

Answer key

  1. 5/12
  2. 1/7
  3. 1/2
  4. 44/45
  5. 25/18
  6. 1/6
  7. 13/45
  8. 1/10
  9. 5/4
  10. 1/15
  11. 2/9
  12. 7/8
  13. 37/36
  14. 3/4
  15. 23/30
  16. 11/24
  17. 1/6
  18. 5/11
  19. 29/44
  20. 15/14
  21. 1
  22. 26/35
  23. 1/3
  24. 59/55
  25. 36/55
  26. 45/28
  27. 5/4
  28. 2/3
  29. 5/24
  30. 1
  31. 7/9
  32. 1/6
  33. 47/60
  34. 17/20
  35. 7/8
  36. 1
  37. 97/66
  38. 1/6
  39. 2/5
  40. 15/14

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