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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 613 · 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. 1.1/2 + 1/3 =
  2. 2.2/8 + 2/9 =
  3. 3.8/11 − 3/5 =
  4. 4.1/2 + 2/4 =
  5. 5.6/12 − 2/8 =
  6. 6.2/6 + 3/11 =
  7. 7.1/10 + 1/4 =
  8. 8.3/8 − 1/3 =
  9. 9.4/5 − 5/8 =
  10. 10.1/2 + 5/11 =
  11. 11.6/10 + 1/6 =
  12. 12.1/2 + 2/7 =
  13. 13.8/9 − 9/11 =
  14. 14.9/10 − 2/3 =
  15. 15.3/4 − 2/10 =
  16. 16.1/9 + 1/7 =
  17. 17.2/12 + 1/2 =
  18. 18.9/11 − 6/10 =
  19. 19.7/12 + 2/4 =
  20. 20.8/11 − 1/2 =
  21. 21.1/2 + 10/12 =
  22. 22.2/12 + 1/5 =
  23. 23.2/4 + 3/11 =
  24. 24.1/3 − 2/8 =
  25. 25.1/11 + 3/6 =
  26. 26.3/4 − 7/10 =
  27. 27.2/10 + 1/4 =
  28. 28.6/7 + 3/4 =
  29. 29.6/7 − 3/5 =
  30. 30.5/8 + 2/10 =
  31. 31.1/10 + 9/11 =
  32. 32.5/8 − 3/7 =
  33. 33.2/3 + 1/3 =
  34. 34.7/10 − 4/9 =
  35. 35.6/8 + 2/11 =
  36. 36.5/7 − 2/4 =
  37. 37.1/2 + 9/10 =
  38. 38.2/4 − 1/12 =
  39. 39.1/10 + 10/12 =
  40. 40.4/5 − 1/2 =

Answer key

  1. 5/6
  2. 17/36
  3. 7/55
  4. 1
  5. 1/4
  6. 20/33
  7. 7/20
  8. 1/24
  9. 7/40
  10. 21/22
  11. 23/30
  12. 11/14
  13. 7/99
  14. 7/30
  15. 11/20
  16. 16/63
  17. 2/3
  18. 12/55
  19. 13/12
  20. 5/22
  21. 4/3
  22. 11/30
  23. 17/22
  24. 1/12
  25. 13/22
  26. 1/20
  27. 9/20
  28. 45/28
  29. 9/35
  30. 33/40
  31. 101/110
  32. 11/56
  33. 1
  34. 23/90
  35. 41/44
  36. 3/14
  37. 7/5
  38. 5/12
  39. 14/15
  40. 3/10

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