8 23÷1627−(516+2 924)×3 15=...8\ \frac{2}{3}\div\frac{16}{27}-\left(\frac{5}{16}+2\ \frac{9}{24}\right)\times3\ \frac{1}{5}=...8 32÷2716−(165+2 249)×3 51=...
2 232\ \frac{2}{3}2 32
2 19212\ \frac{19}{21}2 2119
8 5108\ \frac{5}{10}8 105
4 1404\ \frac{1}{40}4 401