$\dfrac{16}{5}$ . $\dfrac{5}{6}$ – ($\dfrac{3}{5}$ + $\dfrac{1}{3}$) $: 2$

Đáp án:

$\frac{11}{5}$ 

Giải thích các bước giải:

$\frac{16}{5} .\frac{5}{6} – (\frac{3}{5} + \frac{1}{3}) : 2$ 
$= \frac{16}{5} .\frac{5}{6} – (\frac{9}{15} + \frac{5}{15}) : 2$
$= \frac{16}{5} .\frac{5}{6} – \frac{14}{15} : 2$
$= \frac{8}{3}- \frac{7}{15} $
$= \frac{120}{45} -\frac{21}{45} $ 
$= \frac{99}{45} = \frac{11}{5}$