Respuesta :

Answer: y/y+x

Step-by-step explanation:

Answer:

  • y/(x + y)

Step-by-step explanation:

Simplifying

  • (1-x/y) / ( 1-x^2/y^2)=
  • (1-x/y)/(1+1/y)(1-x/y) =
  • 1/(1 + x/y) =
  • 1/(x + y)/y =
  • y/(x + y)

Correct option is the last one