Question

1 - Resolva as seguintes expressões, simplificando quando possível:


c)
$(3.\frac{1}{6} - \frac{9}{4}) \div (1. \frac{1}{2} + 3 - \frac{1}{4} )$
obrigada ​

Answer 1

Resposta:

$(3\times\frac{1}{6} -\frac{9}{4} )\div(1\times\frac{1}{2} +3-\frac{1}{4} )$

$=(3\times\frac{1}{6} -\frac{9}{4} )\div(\frac{1}{2} +3-\frac{1}{4} )$

$=(\frac{1}{2} -\frac{9}{4} )\div\frac{13}{4}$

$=-\frac{7}{4} \times\frac{4}{13}$

$=-7\times\frac{1}{13}$

$=-\frac{7}{13}$

$\boxed{\boxed{\boxed{\boxed{RESPOSTA:-\frac{7}{13} }}}}$