з) 23 \(\cdot \frac{5}{46}\) = \(\frac{23 \cdot 5}{46}\) = \(\frac{23 \cdot 5}{2 \cdot 23}\) = \(\frac{5}{2}\) = 2\(\frac{1}{2}\)
Ответ: 2\(\frac{1}{2}\)