Question

$- 4 - (1 \div 2)$
​

Answer 1

$- 4 - (1 \div 2) \\ \\ = > \: - 4 - \frac{1}{2} \\ \\ = > \: \frac{ - 8 - 1}{2} \\ \\ = > \: \frac{ - 9}{2} = - 4.5$

Hence,

${ \boxed{ \boxed{ \red{- 4 - (1 \div 2) = - 4.5}}}}$