Ответ:
\[1,2=\frac{6}{5},\qquad 1-\frac{1}{3}=\frac{2}{3}.\]
\[\frac{6}{5}:\frac{2}{3}=\frac{6}{5}\cdot\frac{3}{2}=\frac{9}{5}=1,8.\]
Ответ: 1,8.
\[1,2=\frac{6}{5},\qquad 1-\frac{1}{3}=\frac{2}{3}.\]
\[\frac{6}{5}:\frac{2}{3}=\frac{6}{5}\cdot\frac{3}{2}=\frac{9}{5}=1,8.\]
Ответ: 1,8.