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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 300 · 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. 1.7/11 + 1/3 =
  2. 2.2/7 + 1/2 =
  3. 3.5/6 − 1/11 =
  4. 4.5/8 + 1/4 =
  5. 5.5/8 − 2/6 =
  6. 6.3/10 + 1/3 =
  7. 7.5/8 − 1/10 =
  8. 8.1/2 + 2/4 =
  9. 9.2/4 − 1/3 =
  10. 10.1/2 + 1/2 =
  11. 11.1/2 − 1/5 =
  12. 12.4/9 + 2/6 =
  13. 13.2/7 + 1/6 =
  14. 14.2/3 + 1/9 =
  15. 15.11/12 + 6/7 =
  16. 16.2/3 + 3/10 =
  17. 17.1/8 + 8/9 =
  18. 18.3/10 + 9/10 =
  19. 19.4/5 + 1/9 =
  20. 20.1/2 − 1/12 =
  21. 21.3/7 − 3/11 =
  22. 22.1/2 + 1/4 =
  23. 23.1/8 + 8/9 =
  24. 24.1/2 + 1/8 =
  25. 25.7/8 − 5/7 =
  26. 26.5/6 − 4/9 =
  27. 27.1/2 − 2/8 =
  28. 28.6/11 + 2/4 =
  29. 29.2/3 + 8/10 =
  30. 30.9/10 − 2/12 =
  31. 31.3/10 + 1/8 =
  32. 32.8/10 − 1/3 =
  33. 33.8/10 + 1/2 =
  34. 34.1/4 + 3/9 =
  35. 35.1/12 + 2/5 =
  36. 36.6/11 + 1/10 =
  37. 37.2/4 − 1/9 =
  38. 38.10/11 − 6/12 =
  39. 39.2/4 + 7/8 =
  40. 40.5/6 + 2/3 =

Answer key

  1. 32/33
  2. 11/14
  3. 49/66
  4. 7/8
  5. 7/24
  6. 19/30
  7. 21/40
  8. 1
  9. 1/6
  10. 1
  11. 3/10
  12. 7/9
  13. 19/42
  14. 7/9
  15. 149/84
  16. 29/30
  17. 73/72
  18. 6/5
  19. 41/45
  20. 5/12
  21. 12/77
  22. 3/4
  23. 73/72
  24. 5/8
  25. 9/56
  26. 7/18
  27. 1/4
  28. 23/22
  29. 22/15
  30. 11/15
  31. 17/40
  32. 7/15
  33. 13/10
  34. 7/12
  35. 29/60
  36. 71/110
  37. 7/18
  38. 9/22
  39. 11/8
  40. 3/2

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