Ответ:
\[\left|\frac{23}{4}-15\right|-\left|-1\frac{3}{8}\right|\cdot(-3)-13=\left|-\frac{37}{4}\right|-\frac{11}{8}\cdot(-3)-13\]
\[=\frac{37}{4}+\frac{33}{8}-13=\frac{74}{8}+\frac{33}{8}-\frac{104}{8}=\frac{3}{8}.\]
Ответ: \(\frac{3}{8}\).
\[\left|\frac{23}{4}-15\right|-\left|-1\frac{3}{8}\right|\cdot(-3)-13=\left|-\frac{37}{4}\right|-\frac{11}{8}\cdot(-3)-13\]
\[=\frac{37}{4}+\frac{33}{8}-13=\frac{74}{8}+\frac{33}{8}-\frac{104}{8}=\frac{3}{8}.\]
Ответ: \(\frac{3}{8}\).