Ответ:
\[3\frac{3}{4}=3.75,\qquad 3.75-2.3=1.45=\frac{29}{20}.\]
\[\frac{29}{20}:\frac{1}{40}=\frac{29}{20}\cdot40=58.\]
Ответ: \(58\).
\[3\frac{3}{4}=3.75,\qquad 3.75-2.3=1.45=\frac{29}{20}.\]
\[\frac{29}{20}:\frac{1}{40}=\frac{29}{20}\cdot40=58.\]
Ответ: \(58\).