Question 3
The expression $$
\dfrac{2021}{2020} - \dfrac{2020}{2021}
$$ is equal to the fraction $\frac{p}{q}$ in which $p$ and $q$ are positive integers whose greatest common divisor is $1.$ What is $p?$
\dfrac{2021}{2020} - \dfrac{2020}{2021}
$$ is equal to the fraction $\frac{p}{q}$ in which $p$ and $q$ are positive integers whose greatest common divisor is $1.$ What is $p?$