Hyperbolic sine of a logarithm

Question

Re-express $11\sinh(\ln 8)$ in the form $n/m$ where n and m are integers.

I am not sure where to start. Never went over something like this, its probably very easy though.

Answer 1

$\mathrm{sh} (x) = \frac{1}{2}(e^x - e^{-x})$
$$11\mathrm{sh} (\ln 8) = 11\cdot\frac{1}{2}(e^{\ln 8}-e^{-\ln 8})$$