\[\boxed{\ \mathbf{943\ (943)}.\ Еуроки\ - \ ДЗ\ без\ мороки}\]
\[\boxed{\mathbf{943}.\ }\]
\[1)\ \frac{1}{6} = \frac{1 \cdot 7}{6 \cdot 7} = \frac{7}{42}\]
\[2)\ \frac{100}{240} = \frac{100\ :20}{240\ :20} = \frac{5}{12}\]
\[3)\ \frac{3}{4} = \frac{3 \cdot 11}{4 \cdot 11} = \frac{33}{44}\]
\[4)\ \frac{6}{54} = \frac{6\ :6}{54\ :6} = \frac{1}{9}\]