Math Problem Solver

\[ \frac{27}{9} + \frac{12}{5} = \frac{27}{5} = 5.4 \]

The sum can be computed by rewriting each term over a common denominator, where the least common denominator of \(\frac{27}{9}\) and \(\frac{12}{5}\) is \(45\). \[ \begin{aligned} \frac{27}{9} + \frac{12}{5} &= \frac{27 \cdot 5}{9 \cdot 5} + \frac{12 \cdot 9}{5 \cdot 9} \\ &= \frac{135 + 108}{45} \\ &= \frac{243}{45} \\&= \frac{27}{5} \end{aligned} \]