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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 828 · 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. 1.1/7 + 1/9 =
  2. 2.1/6 + 3/4 =
  3. 3.3/5 − 2/8 =
  4. 4.7/8 + 2/4 =
  5. 5.1/3 + 10/11 =
  6. 6.3/6 + 4/8 =
  7. 7.2/3 + 4/8 =
  8. 8.6/9 + 5/10 =
  9. 9.5/6 − 1/10 =
  10. 10.6/8 + 3/11 =
  11. 11.5/7 + 1/6 =
  12. 12.1/2 − 3/7 =
  13. 13.3/9 + 1/3 =
  14. 14.9/11 + 3/7 =
  15. 15.9/12 − 1/12 =
  16. 16.6/7 − 1/2 =
  17. 17.5/7 − 1/2 =
  18. 18.1/4 + 2/5 =
  19. 19.1/2 + 1/6 =
  20. 20.2/9 + 9/10 =
  21. 21.1/11 + 2/5 =
  22. 22.7/8 − 2/7 =
  23. 23.1/2 + 2/3 =
  24. 24.2/5 + 4/8 =
  25. 25.1/3 + 2/12 =
  26. 26.6/12 − 4/11 =
  27. 27.1/3 + 2/10 =
  28. 28.3/4 + 2/3 =
  29. 29.1/4 + 2/3 =
  30. 30.1/2 + 1/2 =
  31. 31.1/2 − 1/4 =
  32. 32.2/6 + 1/4 =
  33. 33.7/9 + 4/8 =
  34. 34.2/3 − 6/10 =
  35. 35.2/5 + 1/5 =
  36. 36.8/11 + 1/10 =
  37. 37.7/10 + 11/12 =
  38. 38.6/8 − 1/2 =
  39. 39.1/3 + 2/7 =
  40. 40.7/8 − 4/11 =

Answer key

  1. 16/63
  2. 11/12
  3. 7/20
  4. 11/8
  5. 41/33
  6. 1
  7. 7/6
  8. 7/6
  9. 11/15
  10. 45/44
  11. 37/42
  12. 1/14
  13. 2/3
  14. 96/77
  15. 2/3
  16. 5/14
  17. 3/14
  18. 13/20
  19. 2/3
  20. 101/90
  21. 27/55
  22. 33/56
  23. 7/6
  24. 9/10
  25. 1/2
  26. 3/22
  27. 8/15
  28. 17/12
  29. 11/12
  30. 1
  31. 1/4
  32. 7/12
  33. 23/18
  34. 1/15
  35. 3/5
  36. 91/110
  37. 97/60
  38. 1/4
  39. 13/21
  40. 45/88

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