Find an Expression for The $n ^ { \text {th } }$

Short Answer

Find an expression for the $n ^ { \text {th } }$ term of the sequence. (Assume that the pattern continues.)
$$\left\{ \frac { 2 } { 25 } , \frac { 4 } { 36 } , \frac { 6 } { 49 } , \frac { 8 } { 64 } , \frac { 10 } { 81 } , \cdots \right\}$$