Incorrect. The least common denominator is the least common multiple (LCM) of 8 and 6. Since $\displaystyle{8}={2}\cdot{2}\cdot{2}\usepackage{cmbright}\Huge\$ and $\displaystyle{6}={2}\cdot{3}\usepackage{cmbright}\Huge\$ , the LCM is $\displaystyle{2}\cdot{2}\cdot{2}\cdot{3}={24}\usepackage{cmbright}\Huge\$ .