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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 212 · 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. 1.2/10 + 5/9 =
  2. 2.9/11 − 1/6 =
  3. 3.1/2 + 1/2 =
  4. 4.2/6 + 4/5 =
  5. 5.3/9 − 1/4 =
  6. 6.5/7 + 3/12 =
  7. 7.4/6 + 1/9 =
  8. 8.4/5 − 2/6 =
  9. 9.1/2 + 3/8 =
  10. 10.3/4 + 5/10 =
  11. 11.1/3 + 3/8 =
  12. 12.1/4 + 3/5 =
  13. 13.7/8 + 3/4 =
  14. 14.1/2 + 1/2 =
  15. 15.3/6 + 2/11 =
  16. 16.1/6 + 1/2 =
  17. 17.1/3 + 3/11 =
  18. 18.1/3 + 1/2 =
  19. 19.5/6 + 3/8 =
  20. 20.11/12 + 3/4 =
  21. 21.9/12 + 1/2 =
  22. 22.2/7 − 1/4 =
  23. 23.1/2 − 2/8 =
  24. 24.7/12 + 3/7 =
  25. 25.7/12 + 2/3 =
  26. 26.6/9 + 1/2 =
  27. 27.4/5 + 1/12 =
  28. 28.2/5 − 1/3 =
  29. 29.5/8 − 2/9 =
  30. 30.2/4 − 2/9 =
  31. 31.1/10 + 1/2 =
  32. 32.1/8 + 2/7 =
  33. 33.3/8 + 2/11 =
  34. 34.2/4 − 4/12 =
  35. 35.2/10 + 1/2 =
  36. 36.5/12 + 1/3 =
  37. 37.2/5 + 4/6 =
  38. 38.3/9 + 1/3 =
  39. 39.8/9 + 2/8 =
  40. 40.6/9 + 2/5 =

Answer key

  1. 34/45
  2. 43/66
  3. 1
  4. 17/15
  5. 1/12
  6. 27/28
  7. 7/9
  8. 7/15
  9. 7/8
  10. 5/4
  11. 17/24
  12. 17/20
  13. 13/8
  14. 1
  15. 15/22
  16. 2/3
  17. 20/33
  18. 5/6
  19. 29/24
  20. 5/3
  21. 5/4
  22. 1/28
  23. 1/4
  24. 85/84
  25. 5/4
  26. 7/6
  27. 53/60
  28. 1/15
  29. 29/72
  30. 5/18
  31. 3/5
  32. 23/56
  33. 49/88
  34. 1/6
  35. 7/10
  36. 3/4
  37. 16/15
  38. 2/3
  39. 41/36
  40. 16/15

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