Math Problem Solver

$$\frac{4}{5} + \frac{6}{4} = \frac{23}{10} = 2.3$$

The sum can be computed by rewriting each term over a common denominator, where the least common denominator of $\frac{4}{5}$ and $\frac{6}{4}$ is $20$. $$\begin{aligned} \frac{4}{5} + \frac{6}{4} &= \frac{4 \cdot 4}{5 \cdot 4} + \frac{6 \cdot 5}{4 \cdot 5} \\ &= \frac{16 + 30}{20} \\ &= \frac{46}{20} \\&= \frac{23}{10} \end{aligned}$$