public static void Main(string[] args)
{
int num = -4;
int den = 3;
var rational = new SimplifiedRational(num, den);
Console.WriteLine(rational.ToString());
}
public void CheckToString(SimplifiedRational r, int num, int den)
{
int n = r.Numerator;
int d = r.Denominator;
Assert.Equal((n < 0 != d < 0 ? "-" : "") + Math.Abs(n) + "/" + Math.Abs(d), r.ToString());
}
