Ответ:

\(\frac{18}{27}+\frac{5}{20}-\frac{16}{24}=\frac23+\frac14-\frac23=\frac14\).

\(\frac{7}{35}-\frac{8}{20}+\frac{37}{14}=\frac15-\frac25+\frac{37}{14}=\frac{171}{70}\).

Так как \(\frac14<\frac{171}{70}\), то:

Ответ: \(\frac{18}{27}+\frac{5}{20}-\frac{16}{24}<\frac{7}{35}-\frac{8}{20}+\frac{37}{14}\).