In a parallel circuit, the total resistance is defined as

$\displaystyle {R}{T}=\frac{{{R}{1}\cdot{R}{2}}}{{{R}{1}+{R}{2}}}$ where R1 and R2 are readings of two resistors.

Find the total resistance of a circuit with two resistors of $\displaystyle {1}\frac{{1}}{{5}}$ ohms and $\displaystyle {1}\frac{{4}}{{5}}$ ohms.

Give your answer as a fraction, reduced to lowest terms. No need to enter "ohms".