Math Problem Solver

$$1\frac{1}{4} + \frac{1}{10} = \frac{27}{20} = 1.35$$

The sum can be computed by rewriting each term over a common denominator, where the least common denominator of $\frac{1}{1}$, $\frac{1}{4}$, and $\frac{1}{10}$ is $20$. $$\begin{aligned} 1\frac{1}{4} + \frac{1}{10} &= \frac{1 \cdot 20}{1 \cdot 20} + \frac{1 \cdot 5}{4 \cdot 5} + \frac{1 \cdot 2}{10 \cdot 2} \\ &= \frac{20 + 5 + 2}{20} \\ &= \frac{27}{20} \end{aligned}$$