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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 235 · 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. 1.4/11 − 2/7 =
  2. 2.8/12 + 8/11 =
  3. 3.5/8 + 1/6 =
  4. 4.2/3 + 1/11 =
  5. 5.4/6 + 4/6 =
  6. 6.1/7 + 3/5 =
  7. 7.1/3 − 3/12 =
  8. 8.1/4 + 2/8 =
  9. 9.7/10 + 1/3 =
  10. 10.1/5 + 1/2 =
  11. 11.3/4 − 2/12 =
  12. 12.1/3 + 1/2 =
  13. 13.4/7 + 3/4 =
  14. 14.4/5 − 4/10 =
  15. 15.8/10 − 7/9 =
  16. 16.5/12 + 6/7 =
  17. 17.1/2 + 4/8 =
  18. 18.1/3 + 1/2 =
  19. 19.2/3 − 1/5 =
  20. 20.1/2 + 1/2 =
  21. 21.4/9 + 3/5 =
  22. 22.1/5 + 7/8 =
  23. 23.6/11 − 1/2 =
  24. 24.8/11 + 1/3 =
  25. 25.3/5 + 2/9 =
  26. 26.1/2 + 5/6 =
  27. 27.8/12 − 2/8 =
  28. 28.2/3 + 1/2 =
  29. 29.5/11 − 1/4 =
  30. 30.2/9 + 2/3 =
  31. 31.1/4 + 1/4 =
  32. 32.2/3 + 3/8 =
  33. 33.11/12 − 5/6 =
  34. 34.2/3 − 1/2 =
  35. 35.8/11 + 1/2 =
  36. 36.3/9 + 1/2 =
  37. 37.2/3 + 1/2 =
  38. 38.6/7 + 1/2 =
  39. 39.1/2 − 5/11 =
  40. 40.1/3 + 5/7 =

Answer key

  1. 6/77
  2. 46/33
  3. 19/24
  4. 25/33
  5. 4/3
  6. 26/35
  7. 1/12
  8. 1/2
  9. 31/30
  10. 7/10
  11. 7/12
  12. 5/6
  13. 37/28
  14. 2/5
  15. 1/45
  16. 107/84
  17. 1
  18. 5/6
  19. 7/15
  20. 1
  21. 47/45
  22. 43/40
  23. 1/22
  24. 35/33
  25. 37/45
  26. 4/3
  27. 5/12
  28. 7/6
  29. 9/44
  30. 8/9
  31. 1/2
  32. 25/24
  33. 1/12
  34. 1/6
  35. 27/22
  36. 5/6
  37. 7/6
  38. 19/14
  39. 1/22
  40. 22/21

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