Ответ:
\(\frac{18}{24}=\frac{3}{4}=\frac{9}{12}\), а \(\frac{3}{8}=\frac{9}{24}\).
\(\frac{18}{24}-\frac{14}{24}+\frac{9}{24}=\frac{13}{24}\).
\(72\times\frac{13}{24}=3\times13=39\).
Ответ: \(39\)
\(\frac{18}{24}=\frac{3}{4}=\frac{9}{12}\), а \(\frac{3}{8}=\frac{9}{24}\).
\(\frac{18}{24}-\frac{14}{24}+\frac{9}{24}=\frac{13}{24}\).
\(72\times\frac{13}{24}=3\times13=39\).
Ответ: \(39\)