/// <summary>
///
/// </summary>
/// <param name="d"></param>
/// <param name="e"></param>
/// <returns></returns>
public static Dolar operator -(Dolar d, Euro e)
{
Dolar aux = (Dolar)e;
return(d.GetCantidad() - aux.GetCantidad());
}
/// <summary>
///
/// </summary>
/// <param name="d"></param>
/// <param name="p"></param>
/// <returns></returns>
public static Dolar operator -(Dolar d, Peso p)
{
Dolar aux = (Dolar)p;
return(d.GetCantidad() - aux.GetCantidad());
}