16 abr 2017, 15:48
Qual o valor da expressão abaixo? (Passo a passo)
\([\frac{9}{7} \ . \ (\frac{\frac{3}{2}+\frac{2}{3}- \frac{5}{6}- \frac{2}{12} }{ \frac{8}{5}. \frac{3}{8}:2+1+ \frac{1}{2}}) \ + \ \frac{1}{3} \ . \ 0,5]\)
a) -1
b) -1/6
c) 0
d) 1/6
e) 1
18 abr 2017, 02:05
\(\frac{3}{2}+\frac{2}{3}-\frac{5}{6}-\frac{2}{12}=
\frac{3}{2}+\frac{2}{3}-\frac{5}{6}-\frac{1}{6}=
\frac{9}{6}+\frac{4}{6}-\frac{5}{6}-\frac{1}{6}=
\frac{7}{6}\)
\(\frac{8}{5} \times \frac{3}{8}\div 2+1+\frac{1}{2}=
\frac{3}{5} \times \frac{1}{2}+1+\frac{1}{2}=
\frac{3}{10}+\frac{3}{2}=
\frac{18}{10}
\frac{9}{5}\)
\(\frac{7}{6} \div \frac{9}{5}=
\frac{7}{6} \times \frac{5}{9}=
\frac{35}{54}\)
\(\left [ \frac{9}{7}\times \frac{35}{54} + \frac{1}{3} \times 0,5 \right ]
\left [ \frac{5}{6} + \frac{1}{6} \right ]
1\)
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