public static complex operator +(complex c1, complex c2)
{
complex c3 = new complex(0, 0);
c3.a = c1.a * c2.b + c2.a * c1.b;
c3.b = c1.b * c2.b;
return(c3);
}
static void Main(string[] args)
{
string s = Console.ReadLine();
string c = s.Split(' ')[0];
string d = s.Split(' ')[1];
int a_ = int.Parse(c.Split('/')[0]);
int b_ = int.Parse(c.Split('/')[1]);
int c_ = int.Parse(d.Split('/')[0]);
int d_ = int.Parse(d.Split('/')[1]);
complex a = new complex(a_, b_);
complex b = new complex(c_, d_);
complex sum = a + b;
Console.WriteLine(sum);
Console.ReadKey();
}
static void Main(string[] args)
{
int a = 9;
int b = 3;
int c = 4;
int d = 2;
complex c1 = new complex(a, b);
complex c2 = new complex(c, d);
complex c3 = c1 + c2;
for (int i = 1; i <= c3.a; i++)
{
if (c3.a % i == 0 && c3.b % i == 0)
{
c3.a = c3.a / i;
c3.b = c3.b / i;
}
}
Console.WriteLine(c3);
Console.ReadKey();
}
