A rational number is in the form of a fraction, there are many ways to write a number as a fraction.
To write 50 we need 2 numbers that when being divides we obtain the final value of 50.
some examples could be
[tex]50=\frac{200}{4}_{}=\frac{50}{1}=\frac{100}{2}=\frac{150}{3}[/tex]