Ответ:
\(\frac{1}{15}+\frac{1}{12}=\frac{4}{60}+\frac{5}{60}=\frac{3}{20}\).
\(\frac{1}{2}-\frac{1}{12}=\frac{6}{12}-\frac{1}{12}=\frac{5}{12}\).
Ответ: \(\frac{1}{15}+\frac{1}{12}<\frac{1}{2}-\frac{1}{12}\).
\(\frac{1}{15}+\frac{1}{12}=\frac{4}{60}+\frac{5}{60}=\frac{3}{20}\).
\(\frac{1}{2}-\frac{1}{12}=\frac{6}{12}-\frac{1}{12}=\frac{5}{12}\).
Ответ: \(\frac{1}{15}+\frac{1}{12}<\frac{1}{2}-\frac{1}{12}\).