static void Main(string[] args)
{
PhanSo ps1 = new PhanSo(1, 4);
PhanSo ps2 = new PhanSo(4, 5);
Console.WriteLine("phan so: {0},{1} sau khi rut gon : {2}, {3}", ps1.toString(), ps2.toString(), ps1.rutGonPS().toString(), ps2.rutGonPS().toString());
Console.WriteLine("phan so: {0} + {1} = {2}", ps1.toString(), ps2.toString(), (ps1 + ps2).rutGonPS().toString());
Console.WriteLine("phan so: {0} > {1}", (ps1 > ps2) ? ps1.rutGonPS().toString() : ps2.rutGonPS().toString(), (ps2 < ps1) ? ps2.rutGonPS().toString() : ps1.rutGonPS().toString());
Console.WriteLine("Phan so: {0} + 1 = {1}", ps1.rutGonPS().toString(), (+ps1).rutGonPS().toString());
Console.ReadKey();
}
public PhanSo rutGonPS()
{
int j, i, ucln = 1;
PhanSo xy;
j = (_tuSo < _mauSo) ? _tuSo : _mauSo;
for (i = 1; i <= j; i++)
{
if (_tuSo % i == 0 && _mauSo % i == 0)
{
ucln = i;
}
}
xy = new PhanSo(_tuSo / ucln, _mauSo / ucln);
return(xy);
}
public PhanSo getThuong(PhanSo ps)
{
PhanSo xy = new PhanSo(_tuSo * ps._mauSo, _mauSo * ps._tuSo);
return(xy);
}
public PhanSo getHieu(PhanSo ps)
{
PhanSo xy = new PhanSo(_tuSo * ps._mauSo - _mauSo * ps._tuSo, _mauSo * ps._mauSo);
return(xy);
}