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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 942 · 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 − 1/11 =
  2. 2.1/3 − 1/4 =
  3. 3.2/5 + 10/12 =
  4. 4.1/12 + 6/8 =
  5. 5.7/9 + 3/10 =
  6. 6.9/12 + 3/10 =
  7. 7.6/8 + 5/9 =
  8. 8.8/12 − 4/9 =
  9. 9.6/8 − 1/2 =
  10. 10.3/9 − 2/12 =
  11. 11.2/4 + 4/5 =
  12. 12.1/2 − 1/7 =
  13. 13.3/6 + 1/3 =
  14. 14.3/6 + 1/6 =
  15. 15.1/2 + 6/12 =
  16. 16.7/8 − 3/9 =
  17. 17.3/9 + 2/5 =
  18. 18.7/9 − 2/4 =
  19. 19.9/10 + 3/7 =
  20. 20.8/9 − 3/4 =
  21. 21.3/6 + 2/3 =
  22. 22.4/9 − 3/10 =
  23. 23.3/4 + 1/4 =
  24. 24.2/5 + 1/6 =
  25. 25.4/5 − 1/5 =
  26. 26.1/5 + 2/4 =
  27. 27.1/2 + 3/9 =
  28. 28.1/5 + 1/12 =
  29. 29.4/5 + 7/10 =
  30. 30.5/10 + 6/7 =
  31. 31.6/10 − 2/7 =
  32. 32.7/10 + 5/7 =
  33. 33.2/3 + 2/3 =
  34. 34.1/2 + 8/9 =
  35. 35.1/2 + 3/4 =
  36. 36.6/10 + 1/2 =
  37. 37.9/12 + 1/2 =
  38. 38.2/3 + 1/4 =
  39. 39.2/5 + 2/4 =
  40. 40.2/8 + 6/8 =

Answer key

  1. 9/22
  2. 1/12
  3. 37/30
  4. 5/6
  5. 97/90
  6. 21/20
  7. 47/36
  8. 2/9
  9. 1/4
  10. 1/6
  11. 13/10
  12. 5/14
  13. 5/6
  14. 2/3
  15. 1
  16. 13/24
  17. 11/15
  18. 5/18
  19. 93/70
  20. 5/36
  21. 7/6
  22. 13/90
  23. 1
  24. 17/30
  25. 3/5
  26. 7/10
  27. 5/6
  28. 17/60
  29. 3/2
  30. 19/14
  31. 11/35
  32. 99/70
  33. 4/3
  34. 25/18
  35. 5/4
  36. 11/10
  37. 5/4
  38. 11/12
  39. 9/10
  40. 1

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