Ответ:
\(\frac{3}{4}-\frac{1}{6}=\frac{9}{12}-\frac{2}{12}=\frac{7}{12}\).
\(\frac{7}{12}\cdot3=\frac{21}{12}=\frac{7}{4}=1\frac{3}{4}\).
Ответ: \(\frac{7}{4}\)
\(\frac{3}{4}-\frac{1}{6}=\frac{9}{12}-\frac{2}{12}=\frac{7}{12}\).
\(\frac{7}{12}\cdot3=\frac{21}{12}=\frac{7}{4}=1\frac{3}{4}\).
Ответ: \(\frac{7}{4}\)