Question

What is the simplified form of (1/x+1/y)/ (1/x-1/y) ?

Answer 1

\[\large\frac{\frac{1}{x}+\frac{1}{y}}{\frac{1}{x}-\frac{1}{y}}\]
The LCD is xy, so we multiply numerator and denominator by xy
\[\frac{y+x}{y-x}\]

Answer 2

Thank Youu (: