Correct. $\displaystyle\frac{{2}}{{3}}\div{7}\usepackage{cmbright}\Huge\$ will show what fraction of a yard each piece will be. Write 7 as $\displaystyle\frac{{7}}{{1}}\usepackage{cmbright}\Huge\$ and multiply by the reciprocal: $\displaystyle\frac{{2}}{{3}}\div\frac{{7}}{{1}}=\frac{{2}}{{3}}\cdot\frac{{1}}{{7}}=\frac{{2}}{{21}}\usepackage{cmbright}\Huge\$