1)
[tex]\longrightarrow (-\dfrac{1}{2} +2)[/tex]
[tex]\longrightarrow (-\dfrac{1}{2} +\dfrac{4}{2} )[/tex]
[tex]\longrightarrow \dfrac{-1+4}{2}[/tex]
[tex]\longrightarrow \dfrac{3}{2}[/tex]
[tex]\sf \bold{\longrightarrow 1\dfrac{1}{2}}[/tex] (final answer)
2)
[tex]\longrightarrow \sf 4(\dfrac{1}{2} +\dfrac{5}{4} ) + (-5)[/tex]
[tex]\longrightarrow \sf 4(\dfrac{2}{4} +\dfrac{5}{4} ) + (-5)[/tex]
[tex]\longrightarrow \sf 4(\dfrac{7}{4} ) + (-5)[/tex]
[tex]\longrightarrow \sf 7-5[/tex]
[tex]\longrightarrow \bold{\sf 2}[/tex] (final answer)
