\[\boxed{\text{141.}}\]
\[Слева\ направо\]
\[1\ ряд:\ \frac{1}{4};\ \frac{2}{5};\ \frac{3}{5};\ \frac{1}{6}.\]
\[2\ ряд:\ \frac{1}{7};\ \frac{3}{14};\ \frac{3}{10}.\]
\[\boxed{\text{142.}}\]
\[\boxed{\text{143.}}\]
\[\boxed{\text{144.}}\]
\[\frac{1}{5}\]
\[\frac{3}{5}\]
\[\frac{4}{5}\]