Cho used $\displaystyle{2}\frac{{2}}{{3}}\usepackage{cmbright}\Huge\$ cups of flour to bake a cake. She used $\displaystyle{3}\frac{{1}}{{4}}\usepackage{cmbright}\Huge\$ cups of flour to bake a loaf of bread. How much more flour did Cho use to bake the loaf of bread than to bake the cake?