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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 166 · 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. 1.3/10 + 1/3 =
  2. 2.4/8 + 8/12 =
  3. 3.4/7 − 1/2 =
  4. 4.4/9 − 2/8 =
  5. 5.1/2 + 4/6 =
  6. 6.5/6 + 3/4 =
  7. 7.7/10 + 1/2 =
  8. 8.9/11 + 1/5 =
  9. 9.3/4 − 1/10 =
  10. 10.6/10 + 3/12 =
  11. 11.2/3 − 1/3 =
  12. 12.2/3 + 3/10 =
  13. 13.8/11 − 5/10 =
  14. 14.2/3 − 4/12 =
  15. 15.5/11 + 10/12 =
  16. 16.6/10 + 1/8 =
  17. 17.6/12 + 1/2 =
  18. 18.2/6 + 1/3 =
  19. 19.3/6 + 1/2 =
  20. 20.2/8 + 8/9 =
  21. 21.7/9 + 4/7 =
  22. 22.3/6 + 7/10 =
  23. 23.10/12 + 3/5 =
  24. 24.1/2 − 1/4 =
  25. 25.1/2 + 2/11 =
  26. 26.1/3 − 1/12 =
  27. 27.4/5 + 1/6 =
  28. 28.5/8 − 1/5 =
  29. 29.2/9 + 1/6 =
  30. 30.1/10 + 2/11 =
  31. 31.8/10 + 2/10 =
  32. 32.2/4 + 2/10 =
  33. 33.1/3 + 11/12 =
  34. 34.1/2 + 1/3 =
  35. 35.1/2 + 5/6 =
  36. 36.4/9 − 4/10 =
  37. 37.1/3 + 11/12 =
  38. 38.5/9 + 3/8 =
  39. 39.1/6 + 1/3 =
  40. 40.2/11 + 3/9 =

Answer key

  1. 19/30
  2. 7/6
  3. 1/14
  4. 7/36
  5. 7/6
  6. 19/12
  7. 6/5
  8. 56/55
  9. 13/20
  10. 17/20
  11. 1/3
  12. 29/30
  13. 5/22
  14. 1/3
  15. 85/66
  16. 29/40
  17. 1
  18. 2/3
  19. 1
  20. 41/36
  21. 85/63
  22. 6/5
  23. 43/30
  24. 1/4
  25. 15/22
  26. 1/4
  27. 29/30
  28. 17/40
  29. 7/18
  30. 31/110
  31. 1
  32. 7/10
  33. 5/4
  34. 5/6
  35. 4/3
  36. 2/45
  37. 5/4
  38. 67/72
  39. 1/2
  40. 17/33

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