Resposta :
Resposta:
Explicação passo a passo:
[tex]-\frac{1}{4}-\frac{1}{4}=\frac{-1-1}{\:\:4} =\frac{-2}{4}=-\frac{1}{2}[/tex]
Olá, tudo bem??
[tex]-\frac{1}{4} -\frac{1}{4} \\\\\frac{-1-1}{4}\\\\\frac{-2}{4} \\\\\frac{2(-1)}{4} \\\\\frac{2\times-1}{2\times2} \\\\\frac{-1}{2} \\\\-\frac{1}{2}[/tex]