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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 480 · 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. 1.7/8 − 7/10 =
  2. 2.4/8 + 5/7 =
  3. 3.2/3 + 2/6 =
  4. 4.8/10 − 2/12 =
  5. 5.2/5 − 2/7 =
  6. 6.1/2 + 1/3 =
  7. 7.1/2 + 1/2 =
  8. 8.3/10 + 1/10 =
  9. 9.2/3 − 1/6 =
  10. 10.3/5 − 3/12 =
  11. 11.4/6 + 2/11 =
  12. 12.1/5 + 1/4 =
  13. 13.2/12 + 2/4 =
  14. 14.1/2 + 2/11 =
  15. 15.6/8 + 1/3 =
  16. 16.3/5 − 1/2 =
  17. 17.1/4 + 1/6 =
  18. 18.1/2 + 4/7 =
  19. 19.8/11 + 5/9 =
  20. 20.1/2 + 5/7 =
  21. 21.1/3 − 1/8 =
  22. 22.6/10 − 1/2 =
  23. 23.5/6 + 1/9 =
  24. 24.1/5 + 2/5 =
  25. 25.2/4 + 1/2 =
  26. 26.9/12 + 1/5 =
  27. 27.1/3 − 2/8 =
  28. 28.1/12 + 8/9 =
  29. 29.3/5 + 2/5 =
  30. 30.10/12 − 6/12 =
  31. 31.5/9 + 9/10 =
  32. 32.6/7 − 3/4 =
  33. 33.7/9 − 5/12 =
  34. 34.5/6 + 5/8 =
  35. 35.2/3 − 1/2 =
  36. 36.4/11 + 3/4 =
  37. 37.2/3 + 2/3 =
  38. 38.3/6 + 1/6 =
  39. 39.1/2 − 1/3 =
  40. 40.1/2 + 6/7 =

Answer key

  1. 7/40
  2. 17/14
  3. 1
  4. 19/30
  5. 4/35
  6. 5/6
  7. 1
  8. 2/5
  9. 1/2
  10. 7/20
  11. 28/33
  12. 9/20
  13. 2/3
  14. 15/22
  15. 13/12
  16. 1/10
  17. 5/12
  18. 15/14
  19. 127/99
  20. 17/14
  21. 5/24
  22. 1/10
  23. 17/18
  24. 3/5
  25. 1
  26. 19/20
  27. 1/12
  28. 35/36
  29. 1
  30. 1/3
  31. 131/90
  32. 3/28
  33. 13/36
  34. 35/24
  35. 1/6
  36. 49/44
  37. 4/3
  38. 2/3
  39. 1/6
  40. 19/14

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