Question

Resolva as seguintes expressões, simplificando quando possível:

Answer 1

$a)( \frac{3}{8}+4* \frac{1}{2}):(3* \frac{2}{3}+ \frac{1}{4})=$

$( \frac{3}{8}+2):(2+ \frac{1}{4})=$

$\frac{19}{8}: \frac{9}{4}= \frac{19}{8}* \frac{4}{9}= \frac{19}{18}$
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$b)(3* \frac{1}{6}- \frac{9}{4}):(1* \frac{1}{2}+3- \frac{1}{4})=$

$(\frac{1}{2}- \frac{9}{4}):( \frac{1}{2}+ \frac{11}{4})=$

$( \frac{2-9}{4}):( \frac{2+11}{4})=$

$- \frac{7}{4}: \frac{13}{4}=- \frac{7}{4}* \frac{4}{13}= -\frac{7}{13}$