Question

$[5-( \frac{1}{2}+ \frac{1}{3} ).3+ \frac{1}{4} ]: \frac{1}{2}$

Answer 1

Espero ter ajudado! Isso é mega cansativo, mas é fácil! rs 
Bons estudos!

$[5-( \frac{1}{2} + \frac{1}{3} )*3+ \frac{1}{4} ]: \frac{1}{2}$

$[5-( \frac{3+2}{6} )*3+ \frac{1}{4} ]: \frac{1}{2} = [ 5- \frac{5}{6} *3+ \frac{1}{4} ]: \frac{1}{2} =[5- \frac{15}{6} *3+ \frac{1}{4} ]: \frac{1}{2}$

$[5- \frac{45}{6} + \frac{1}{4} ]: \frac{1}{4} =[ \frac{60-90+3}{12} ]: \frac{1}{4} = \frac{-27}{12} : \frac{1}{4} = \frac{-27}{12} . {4}= \frac{-108^{/12} }{12 ^{/12} } = \frac{-9}{1} =-9$