Math Problem Solver

\[ \frac{5}{12} - \frac{7}{20} = \frac{1}{15} = 0.0\overline{6} \]

The sum can be computed by rewriting each term over a common denominator, where the least common denominator of \(\frac{5}{12}\) and \(\frac{-7}{20}\) is \(60\). \[ \begin{aligned} \frac{5}{12} - \frac{7}{20} &= \frac{5 \cdot 5}{12 \cdot 5} + \frac{-7 \cdot 3}{20 \cdot 3} \\ &= \frac{25 + -21}{60} \\ &= \frac{4}{60} \\&= \frac{1}{15} \end{aligned} \]