You get $\displaystyle{\left(\frac{{1}}{{5}}\cdot\frac{{2}}{{3}}\right)}\cdot\frac{{5}}{{2}}\usepackage{cmbright}\Huge\$ by applying the commutative property to the first multiplication. Then you get $\displaystyle\frac{{1}}{{5}}\cdot{\left(\frac{{2}}{{3}}\cdot\frac{{5}}{{2}}\right)}\usepackage{cmbright}\Huge\$ by using the associative property to regroup.