Resposta:
-17/12
(1/4) - 1 + (1/3) - 1=
(3/12) - 12/12 + (4/12) - 12/12=
(-9/12) + 4/12 - 12/12=
(-5/12) - 12/12= -17/12
Boa tarde!
Explicação passo-a-passo:
[tex]\dfrac{1}{4} -1+\dfrac{1}{3} -1=\dfrac{3-12+4-12}{12} =\dfrac{7-24}{12}=-\dfrac{17}{12}[/tex]
