$\displaystyle \frac{x+2}{4x+4}$\displaystyle \frac{x+2}{4x+4}

$\displaystyle \frac{x+1}{4x+5}$\displaystyle \frac{x+1}{4x+5}

$\displaystyle \frac{x+1}{x+2}$\displaystyle \frac{x+1}{x+2}

$\displaystyle \frac{2x}{x+2}$\displaystyle \frac{2x}{x+2}