Question 803372
{{{((-8/15)+(-4/sqrt (105)))/(1-(-8/15)*(-4/sqrt (105)))}}}


{{{ ((-8sqrt(105)-60)/(15sqrt(105)))/(1-(32/(15sqrt(105))))}}}


{{{(-8sqrt(105)-60)/(15sqrt(105)-32)}}}

For further simplification you may rationalize the denominator