Answer:
[tex]\frac{n-1}{n-2}[/tex]
Step-by-step explanation:
Given
[tex]\frac{n+n-2}{n-1+n-3}[/tex]
Then simplify the numerator as
n+n-2 = 2n-2
Also simplify the denominator as
n-1+n-3 = 2n-4
Rewrite as
[tex]\frac{2n-2}{2n-4}\\ \\\\\frac{2(n-1)}{2(n-2)}[/tex]
cancel 2/2 to get 1 and remain with;
[tex]\frac{n-1}{n-2}[/tex]
