Low Pass Filter Gain

An $RLC$ low pass filter takes a sinusoidal voltage input $V_S$ and produces an output voltage $V_{out}$ . At angular frequency $\omega$ , what is the ratio of the magnitude of $V_{out}$ to the magnitude of $V_S$ ?

Details and Assumptions:
1) $R = 0.5$
2) $L = 1$
3) $C = 1$
4) $\omega = 1$