Respuesta :

8/10 x (-5) x 1/-7 = -40/-70

you can reduce this to 4/7
[tex]\frac{8}{10}*(-5)*\frac{1}{-7}\\\\\frac{4}{5}*\frac{-5}{1}*\frac{-1}{7}\\\\\frac{4*(-5)*(-1)}{5*1*7}\\\\\frac{20}{35}\\\\\frac{4*5}{7*5}\\\\\frac{4}{7}[/tex]
The simplest form of the expression is 4/7.