$HM=L\left(H+M\right)\text{ and }L\left(H+M\right)=26.8$

$M=\frac{134}{5H}$
$L=\frac{134H}{5\left(H^{2}+26.8\right)}\text{ and }H\neq 0$

$L=\frac{134H}{5\left(H^{2}+26.8\right)}$
$M=\frac{134}{5H}\text{ and }H\neq 0$