Question

efectuati:
$-2^{-1} - ( \frac{-3}{-5} ) : ( -\frac{1}{5} ) - (-1^{0})=$

Answer 1

-2⁻¹-(-3/-5):(-1/5)-(-1⁰)=
=-1/2-3/5×(-5/1)-(-1)=
=-1/2+3+1=
=-1/2+4=
=7/2