\(\frac{1}{x}+\frac{1}{y}+\frac{1}{x}-\frac{1}{y}=5+1=6\)
\(\Leftrightarrow\frac{2}{x}=6\Rightarrow x=\frac{2}{6}=\frac{1}{3}\)
\(\frac{1}{x}+\frac{1}{y}-\left(\frac{1}{x}-\frac{1}{y}\right)=5-1=4\)
\(\Leftrightarrow\frac{1}{x}+\frac{1}{y}-\frac{1}{x}+\frac{1}{y}=4\)
\(\Leftrightarrow\frac{2}{y}=4\Rightarrow y=\frac{2}{4}=\frac{1}{2}\)
\(\Rightarrow x+y=\frac{1}{3}+\frac{1}{2}=\frac{5}{6}\)