Ok, factors of 54 are: [1,2,3,6,9,18,27,54]. Factirs of 4 are: [1,2,4].
Let x be a fraction with a factor of 54 as its numerator and a factor of 4 as its denominator.
So I'll guess 1 for the numerator and 1 for the denominator, making x = 1. Sub x = 1 into the equation. You will see that x = 1...