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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 317 · 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. 1.3/7 + 5/12 =
  2. 2.1/2 − 1/9 =
  3. 3.2/3 + 1/2 =
  4. 4.3/5 − 1/2 =
  5. 5.1/2 + 1/2 =
  6. 6.2/5 + 1/3 =
  7. 7.2/5 − 2/10 =
  8. 8.5/7 + 1/10 =
  9. 9.3/8 − 1/8 =
  10. 10.5/10 + 1/3 =
  11. 11.1/6 + 1/5 =
  12. 12.3/8 − 3/11 =
  13. 13.1/4 + 3/11 =
  14. 14.1/5 + 3/9 =
  15. 15.6/12 + 1/2 =
  16. 16.10/12 − 2/3 =
  17. 17.1/3 + 5/11 =
  18. 18.7/12 − 1/4 =
  19. 19.3/4 − 5/8 =
  20. 20.1/2 − 1/10 =
  21. 21.1/3 + 8/10 =
  22. 22.5/8 − 1/12 =
  23. 23.4/10 + 2/3 =
  24. 24.3/4 − 3/6 =
  25. 25.4/6 − 2/5 =
  26. 26.3/4 − 3/5 =
  27. 27.2/3 + 4/6 =
  28. 28.2/4 + 6/9 =
  29. 29.3/5 − 1/2 =
  30. 30.1/2 + 1/2 =
  31. 31.2/3 + 7/9 =
  32. 32.2/3 + 7/10 =
  33. 33.4/6 + 4/7 =
  34. 34.1/2 + 8/11 =
  35. 35.3/6 − 1/3 =
  36. 36.8/9 + 1/6 =
  37. 37.3/10 − 2/10 =
  38. 38.2/9 + 2/8 =
  39. 39.5/9 − 3/10 =
  40. 40.4/7 + 1/2 =

Answer key

  1. 71/84
  2. 7/18
  3. 7/6
  4. 1/10
  5. 1
  6. 11/15
  7. 1/5
  8. 57/70
  9. 1/4
  10. 5/6
  11. 11/30
  12. 9/88
  13. 23/44
  14. 8/15
  15. 1
  16. 1/6
  17. 26/33
  18. 1/3
  19. 1/8
  20. 2/5
  21. 17/15
  22. 13/24
  23. 16/15
  24. 1/4
  25. 4/15
  26. 3/20
  27. 4/3
  28. 7/6
  29. 1/10
  30. 1
  31. 13/9
  32. 41/30
  33. 26/21
  34. 27/22
  35. 1/6
  36. 19/18
  37. 1/10
  38. 17/36
  39. 23/90
  40. 15/14

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