Question 94
Determine the area of the polygon formed by the ordered pairs $(x, y)$ where $x$ and $y$ are positive integers which satisfy the equation
$$
\frac{1}{x} + \frac{1}{y} = \frac{1}{13}
$$
$$
\frac{1}{x} + \frac{1}{y} = \frac{1}{13}
$$
MathNet 2017-part-04 — 176 problems (EN–VI) Question 94
Math Olympiad Vault · MathNet 2017-part-04 — 176 problems (EN–VI)