//---------------------Pregunta 1--------------------
import java.awt.*;

class p1{

static public void main(String[]args){
	Console C = new Console();
	C.println("Suma de fracciones: a/b + c/d");
	C.print("a ? "); 
	double a = C.readDouble();
	C.print("b ? "); 
	double b = C.readDouble();
	C.print("c ? "); 
	double c = C.readDouble();
	C.print("d ? "); 
	double d = C.readDouble();
	C.println("suma = " + (int)(a*d+b*c) + "/" + (int)(b*d));
}

}

//---------------------Pregunta 2--------------------
import java.awt.*;

class p2{

static public void main(String[]args){
	Console C = new Console();
	C.print("Cunto dinero necesita? ");
	int dinero = C.readInt();
	C.println((dinero/10000) + " de $10.000");
	dinero = dinero%10000;
	C.println((dinero/5000) + " de  $5.000");
	dinero = dinero%5000;
	C.println((dinero/1000) + " de  $1.000");
}

}

//---------------------Pregunta 3--------------------
import java.awt.*;

class p3{

static public void main(String[]args){
	Console C = new Console();
	C.println("Sumar dos instantes de tiempo");
	C.print("Primer instante (HHMM) ? ");
	int t1 = C.readInt();
	int min1 = t1/100 , seg1 = t1%100;
	C.print("Segundo instante (HHMM) ? ");
	int t2 = C.readInt();
	int min2 = t2/100 , seg2 = t2%100;
	C.println("Suma = " + (min1+min2+(seg1+seg2)/60)%24 + ((seg1+seg2)%60) );
}

}
