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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 290 · 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 − 1/6 =
  2. 2.3/12 + 1/10 =
  3. 3.6/10 + 3/5 =
  4. 4.1/2 + 1/2 =
  5. 5.9/10 + 6/9 =
  6. 6.2/6 + 2/3 =
  7. 7.1/3 + 1/2 =
  8. 8.2/6 + 6/7 =
  9. 9.8/11 − 1/4 =
  10. 10.6/12 + 5/7 =
  11. 11.1/4 − 2/9 =
  12. 12.10/11 − 3/5 =
  13. 13.6/12 − 2/5 =
  14. 14.7/11 − 2/9 =
  15. 15.1/5 + 1/3 =
  16. 16.3/9 + 7/9 =
  17. 17.1/4 + 1/11 =
  18. 18.7/8 + 6/7 =
  19. 19.1/3 + 3/4 =
  20. 20.5/9 − 1/10 =
  21. 21.1/12 + 6/12 =
  22. 22.3/8 + 3/5 =
  23. 23.10/11 − 3/8 =
  24. 24.2/5 + 1/2 =
  25. 25.2/7 + 2/10 =
  26. 26.1/3 + 1/6 =
  27. 27.9/12 + 3/4 =
  28. 28.4/6 + 2/3 =
  29. 29.1/2 − 1/3 =
  30. 30.4/5 + 1/6 =
  31. 31.4/7 + 1/2 =
  32. 32.5/6 + 1/12 =
  33. 33.1/2 + 1/11 =
  34. 34.1/2 − 1/7 =
  35. 35.2/3 + 1/2 =
  36. 36.3/9 + 2/3 =
  37. 37.1/11 + 3/5 =
  38. 38.9/10 + 2/9 =
  39. 39.1/3 + 1/3 =
  40. 40.1/2 + 2/11 =

Answer key

  1. 1/3
  2. 7/20
  3. 6/5
  4. 1
  5. 47/30
  6. 1
  7. 5/6
  8. 25/21
  9. 21/44
  10. 17/14
  11. 1/36
  12. 17/55
  13. 1/10
  14. 41/99
  15. 8/15
  16. 10/9
  17. 15/44
  18. 97/56
  19. 13/12
  20. 41/90
  21. 7/12
  22. 39/40
  23. 47/88
  24. 9/10
  25. 17/35
  26. 1/2
  27. 3/2
  28. 4/3
  29. 1/6
  30. 29/30
  31. 15/14
  32. 11/12
  33. 13/22
  34. 5/14
  35. 7/6
  36. 1
  37. 38/55
  38. 101/90
  39. 2/3
  40. 15/22

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