\frac{15}{19} " alt=" 2c+\frac{1}{38}> \frac{15}{19} " align="absmiddle" class="latex-formula">
\frac{15}{19} - \frac{1}{38} " alt=" 2c > \frac{15}{19} - \frac{1}{38} " align="absmiddle" class="latex-formula">
\frac{30-1}{38} " alt=" 2c >\frac{30-1}{38} " align="absmiddle" class="latex-formula">
\frac{29}{76} " alt=" c> \frac{29}{76} " align="absmiddle" class="latex-formula">
==> наименьшее c=1