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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 794 · 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. 1.9/10 + 1/7 =
  2. 2.2/9 + 3/9 =
  3. 3.2/4 + 1/2 =
  4. 4.3/5 + 8/9 =
  5. 5.1/3 − 2/7 =
  6. 6.3/4 − 1/4 =
  7. 7.4/5 + 3/4 =
  8. 8.2/3 + 2/3 =
  9. 9.1/2 − 4/12 =
  10. 10.4/9 − 4/10 =
  11. 11.1/3 − 1/4 =
  12. 12.1/3 + 1/12 =
  13. 13.2/3 + 7/12 =
  14. 14.2/7 + 2/3 =
  15. 15.5/10 + 3/4 =
  16. 16.3/5 + 3/7 =
  17. 17.6/9 − 3/12 =
  18. 18.4/11 + 1/3 =
  19. 19.1/2 + 2/7 =
  20. 20.3/4 + 1/4 =
  21. 21.3/5 + 1/3 =
  22. 22.5/7 − 1/4 =
  23. 23.3/4 − 1/4 =
  24. 24.2/3 − 2/4 =
  25. 25.2/7 + 8/11 =
  26. 26.7/12 − 1/3 =
  27. 27.1/4 + 5/8 =
  28. 28.6/7 + 3/5 =
  29. 29.8/12 − 1/2 =
  30. 30.7/10 − 2/12 =
  31. 31.3/5 − 4/7 =
  32. 32.1/2 + 1/10 =
  33. 33.4/6 − 2/7 =
  34. 34.1/2 − 4/11 =
  35. 35.2/5 + 5/6 =
  36. 36.1/2 − 1/4 =
  37. 37.1/2 + 3/6 =
  38. 38.3/5 + 6/10 =
  39. 39.4/5 + 2/6 =
  40. 40.5/12 − 1/3 =

Answer key

  1. 73/70
  2. 5/9
  3. 1
  4. 67/45
  5. 1/21
  6. 1/2
  7. 31/20
  8. 4/3
  9. 1/6
  10. 2/45
  11. 1/12
  12. 5/12
  13. 5/4
  14. 20/21
  15. 5/4
  16. 36/35
  17. 5/12
  18. 23/33
  19. 11/14
  20. 1
  21. 14/15
  22. 13/28
  23. 1/2
  24. 1/6
  25. 78/77
  26. 1/4
  27. 7/8
  28. 51/35
  29. 1/6
  30. 8/15
  31. 1/35
  32. 3/5
  33. 8/21
  34. 3/22
  35. 37/30
  36. 1/4
  37. 1
  38. 6/5
  39. 17/15
  40. 1/12

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