$$\left. \begin{array} { l } { 1 \frac { 2 } { 2 } } \\ { 21 \frac { 2 } { 10 } } \\ { 3 \frac { 2 } { 10 } } \\ { 42 \frac { 2 } { 10 } } \\ { 5 \frac { 2 } { 4 } } \end{array} \right.$$
$2,\frac{16}{5},\frac{11}{2},\frac{106}{5},\frac{211}{5}$
$2,\ \frac{106}{5},\ \frac{16}{5},\ \frac{211}{5},\ \frac{11}{2}$