Math Problem Solver

\[ \frac{1}{12} + \frac{1}{15} = \frac{3}{20} = 0.15 \]

The sum can be computed by rewriting each term over a common denominator, where the least common denominator of \(\frac{1}{12}\) and \(\frac{1}{15}\) is \(60\). \[ \begin{aligned} \frac{1}{12} + \frac{1}{15} &= \frac{1 \cdot 5}{12 \cdot 5} + \frac{1 \cdot 4}{15 \cdot 4} \\ &= \frac{5 + 4}{60} \\ &= \frac{9}{60} \\&= \frac{3}{20} \end{aligned} \]