$$( \frac { 4 } { 7 } \div \frac { 1 } { 14 } ) + ( 2 \frac { 1 } { 2 } \div \frac { 5 } { 2 } )$$
$9$
$$\frac{4}{7}\times 14+\frac{\frac{2\times 2+1}{2}}{\frac{5}{2}}$$
$$\frac{4\times 14}{7}+\frac{\frac{2\times 2+1}{2}}{\frac{5}{2}}$$
$$\frac{56}{7}+\frac{\frac{2\times 2+1}{2}}{\frac{5}{2}}$$
$$8+\frac{\frac{2\times 2+1}{2}}{\frac{5}{2}}$$
$$8+\frac{\left(2\times 2+1\right)\times 2}{2\times 5}$$
$$8+\frac{1+2\times 2}{5}$$
$$8+\frac{1+4}{5}$$
$$8+\frac{5}{5}$$
$$8+1$$
$$9$$
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$3^{2}$
