Ответ:
\[1+\frac{1}{12}=\frac{13}{12},\qquad \frac{1.3}{13/12}=1.3\cdot\frac{12}{13}=\frac{13}{10}\cdot\frac{12}{13}=\frac{6}{5}=1.2.\]
Ответ: \(1,2\).
\[1+\frac{1}{12}=\frac{13}{12},\qquad \frac{1.3}{13/12}=1.3\cdot\frac{12}{13}=\frac{13}{10}\cdot\frac{12}{13}=\frac{6}{5}=1.2.\]
Ответ: \(1,2\).