[tex]\boldsymbol{\sf{-\dfrac{1}{4}-\dfrac{1}{8} }}[/tex]
Convert -1/4 and 1/8 to fractions with like denominators.
[tex]\boldsymbol{\sf{-\dfrac{1\times2}{4\times2}-\dfrac{1}{8} \ \ \longmapsto \ \ [Simplify] }}[/tex]
[tex]\boldsymbol{\sf{-\dfrac{2}{8}-\dfrac{1}{8} }}[/tex]
Since -2/8 and 1/8 have the same denominator, join their numerators to subtract them.
[tex]\boldsymbol{\sf{\dfrac{-2-1}{8} }}[/tex]
Subtract 1 from −2 to get −3.
[tex]\red{\boxed{\boldsymbol{\sf{\blue{Answer \ \ \longmapsto \ \ -\frac{3}{8} }}}}}[/tex]
