Math Problem Solver

$$\frac{1234567890}{1234567890} + 1234567890 - 1234567890 = 1$$

The sum can be computed by rewriting each term over a common denominator, where the least common denominator of $\frac{1234567890}{1234567890}$, $\frac{1234567890}{1}$, and $\frac{-1234567890}{1}$ is $1234567890$. $$\begin{aligned} \frac{1234567890}{1234567890} + 1234567890 - 1234567890 &= \frac{1234567890 \cdot 1}{1234567890 \cdot 1} + \frac{1234567890 \cdot 1234567890}{1 \cdot 1234567890} + \frac{-1234567890 \cdot 1234567890}{1 \cdot 1234567890} \\ &= \frac{1234567890 + 1524157875019052100 + -1524157875019052100}{1234567890} \\ &= \frac{1234567890}{1234567890} \\&= 1 \end{aligned}$$