//HIEU
public static CPhanSo hieu(CPhanSo a, CPhanSo b)
{
CPhanSo s = new CPhanSo();
s.TuSo = a.TuSo * b.MauSo - b.TuSo * a.MauSo;
s.MauSo = a.MauSo * b.MauSo;
return(s);
}
//CHiA
public static CPhanSo thuong(CPhanSo a, CPhanSo b)
{
CPhanSo s = new CPhanSo();
s.TuSo = a.TuSo * b.MauSo;
s.MauSo = a.MauSo * b.TuSo;
return(s);
}
static void Main(string[] args)
{
CPhanSo a = new CPhanSo(5, 5);
CPhanSo b = new CPhanSo(5, 2);
CPhanSo f = a + b;
f.rutgon();
f.Xuat();
CPhanSo s;
//cong
s = a + b;
Console.Write("Neu s= a+b thi : ");
s.rutgon();
s.Xuat();
//tru
s = a - b;
Console.Write("Neu s= a-b thi : ");
s.rutgon();
s.Xuat();
//nhan
s = a * b;
Console.Write("Neu s= a*b thi : ");
s.rutgon();
s.Xuat();
//chia
s = a / b;
Console.Write("Neu s= a/b thi : ");
s.rutgon();
s.Xuat();
Console.WriteLine("////////////////////////////////////////////////////////");
Console.Write("Neu c =a+b thi : ");
CPhanSo c = a + b;
c.Xuat();
Console.Write("Neu c =a-- thi : ");
c = a--;
c.Xuat();
Console.Write("a = ");
a.Xuat();
// su khac biet neu phep tinh --
Console.Write("Neu c = --a thi : ");
c = --a;
c.Xuat();
Console.Write("a = ");
a.Xuat();
Console.Write("Neu c =a++ thi : ");
c = a++;
c.Xuat();
Console.Write("a = ");
a.Xuat();
Console.Write("Neu c =++a thi : ");
c = ++a;
c.Xuat();
Console.Write("a = ");
a.Xuat();
Console.WriteLine("////////////////////////////////////////////////////////");
CPhanSo h = new CPhanSo(1, 2);
h.tang1();
h.Xuat();
h.giam1();
h.Xuat();
Console.ReadLine();
}
