Ответ:
\(1\frac13=\frac43\), \(3\frac12=\frac72\).
\(\frac56-\frac72=\frac5{6}-\frac{21}{6}=-\frac{16}{6}=-\frac83\).
\(\frac43:\left(-\frac83\right)=\frac43\cdot\left(-\frac38\right)=-\frac12\).
Ответ: \(-\frac12\)
\(1\frac13=\frac43\), \(3\frac12=\frac72\).
\(\frac56-\frac72=\frac5{6}-\frac{21}{6}=-\frac{16}{6}=-\frac83\).
\(\frac43:\left(-\frac83\right)=\frac43\cdot\left(-\frac38\right)=-\frac12\).
Ответ: \(-\frac12\)