Question

um repost (?), preciso mt da ajuda de vcs somente nessas três pfvr
$n) \frac{3}{4} - ( \frac{1}{4} - \frac{1}{6} )$
$o)( - \frac{4}{5})^{2}$
$p)( \frac{1}{2} - \frac{1}{3})^{2} . \frac{3}{5}$
namoralzinha msm, me ajudem​

Answer 1

Explicação passo-a-passo:

$n) \frac{3}{4} - ( \frac{1}{4} - \frac{1}{6} ) = \frac{3}{4} - ( \frac{3 - 2}{12} ) = \frac{3}{4} - \frac{1}{12} = mmc = 12$

$\frac{9 - 1}{12} = \frac{8}{12} = \frac{2}{3}$

$o)( - \frac{4}{5} ) {}^{2} = - \frac{4}{5} . - \frac{4}{5} = \frac{16}{25}$

$p)( \frac{1}{2} - \frac{1}{3} ). \frac{3}{5}$

$( \frac{3 - 2}{6} ) {}^{2} . \frac{3}{5} = ( \frac{1}{6} ) {}^{2} . \frac{3}{5} = \frac{1}{36} . \frac{3}{5} = \frac{3}{180} = \frac{1}{60}$