(-8)/(1/2-3/4+5/8)+(-2)*5
=(-8)/(4/8-6/8+5/8)+(-10)
=(-8)/(3/8)-10
=-3-10
=-13
(-3.5)*(1/6-0.5)*(3/7)/(-1/2)
=(-3.5)*(1/6-1/2)*(3/7)/(-1/2)
=(-3.5)*(1/6-3/6)*(3/7)/(-1/2)
=(-3.5)*(-2/6)*(3/7)/(-1/2)
=-(7/2)*(2/6)*(3/7)/(1/2)
=-2/(1/2)
=-4
(-8)/(1/2-3/4+5/8)+(-2)*5
=(-8)/(4/8-6/8+5/8)+(-10)
=(-8)/(3/8)-10
=-3-10
=-13
(-3.5)*(1/6-0.5)*(3/7)/(-1/2)
=(-3.5)*(1/6-1/2)*(3/7)/(-1/2)
=(-3.5)*(1/6-3/6)*(3/7)/(-1/2)
=(-3.5)*(-2/6)*(3/7)/(-1/2)
=-(7/2)*(2/6)*(3/7)/(1/2)
=-2/(1/2)
=-4