import java.io.*;

class rational

{

int num,den,r;

void setdata()

{

DataInputStream dis=new DataInputStream(System.in);

try

{

System.out.println("Enter the Denominator");

num=Integer.parseInt(dis.readLine());

System.out.println("Enter the Numerator");

den=Integer.parseInt(dis.readLine());

}

catch(Exception e)

{}

}

boolean is_equal(rational r)

{

if((num==r.num)&&(den==r.den))

{

return true;

}

else

{

return false;

}

}

rational add(rational r)

{

r.num=(num*r.den)+(r.num*den);

r.den=(den*r.den);

return r;

}

rational div()

{

r.num=(num*r.den);

r.den=(den*r.num);

return r;

}

void display()

{

}

public static void main(String args[])

{

rational r1=new rational();

rational r2=new rational();

r1.setdata();

r2.setdata();

rational r= new rational();

r=r1.div(r2);

System.out.println("Division of 2 rationals is");

r.show();

boolean b=r1.is_equal(r2);

if(b==true)

System.out.println("Both are Equal numbers");

else

System.out.println("Both are Unequal");

r=r1.add(r2);

System.out.println("Addition of two rationals is:");

r2.show();

}

}