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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 865 · 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. 1.1/8 + 1/4 =
  2. 2.8/10 + 1/2 =
  3. 3.3/4 + 1/6 =
  4. 4.2/3 + 1/5 =
  5. 5.3/4 + 2/3 =
  6. 6.1/2 − 1/6 =
  7. 7.4/5 + 8/11 =
  8. 8.1/4 + 2/8 =
  9. 9.4/5 − 7/9 =
  10. 10.1/5 + 1/2 =
  11. 11.4/5 − 3/6 =
  12. 12.5/6 − 9/11 =
  13. 13.1/2 + 1/3 =
  14. 14.1/12 + 2/7 =
  15. 15.6/8 + 2/9 =
  16. 16.5/6 − 5/7 =
  17. 17.1/4 + 2/9 =
  18. 18.3/5 − 1/2 =
  19. 19.1/5 + 8/9 =
  20. 20.5/6 + 5/7 =
  21. 21.8/9 + 3/5 =
  22. 22.9/11 − 3/4 =
  23. 23.2/3 + 7/10 =
  24. 24.2/5 + 4/5 =
  25. 25.2/3 + 2/12 =
  26. 26.3/9 + 7/12 =
  27. 27.7/10 + 11/12 =
  28. 28.2/12 + 5/6 =
  29. 29.1/7 + 3/7 =
  30. 30.1/2 + 6/7 =
  31. 31.3/4 − 6/10 =
  32. 32.1/2 + 1/2 =
  33. 33.4/5 + 6/7 =
  34. 34.7/10 − 1/2 =
  35. 35.2/3 + 2/9 =
  36. 36.1/6 + 8/10 =
  37. 37.1/12 + 5/6 =
  38. 38.3/5 + 1/4 =
  39. 39.4/6 − 4/8 =
  40. 40.2/3 + 1/3 =

Answer key

  1. 3/8
  2. 13/10
  3. 11/12
  4. 13/15
  5. 17/12
  6. 1/3
  7. 84/55
  8. 1/2
  9. 1/45
  10. 7/10
  11. 3/10
  12. 1/66
  13. 5/6
  14. 31/84
  15. 35/36
  16. 5/42
  17. 17/36
  18. 1/10
  19. 49/45
  20. 65/42
  21. 67/45
  22. 3/44
  23. 41/30
  24. 6/5
  25. 5/6
  26. 11/12
  27. 97/60
  28. 1
  29. 4/7
  30. 19/14
  31. 3/20
  32. 1
  33. 58/35
  34. 1/5
  35. 8/9
  36. 29/30
  37. 11/12
  38. 17/20
  39. 1/6
  40. 1

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