//_______________________________________________________________________________________________________
public static phanso operator -(phanso t1, phanso t2)
{
phanso hieu = new phanso();
hieu.ts = t1.ts * t2.ms - t2.ts * t1.ms;
hieu.ms = t2.ms * t1.ms;
hieu.ToiGian();
return(hieu);
}
//---------------------------------------------------------------
public static phanso operator +(phanso t1, phanso t2)
{
phanso Tong = new phanso();
Tong.ts = t1.ts * t2.ms + t2.ts * t1.ms;
Tong.ms = t2.ms * t1.ms;
Tong.ToiGian();
return(Tong);
}
//===============================================================================================
public phanso Cong(phanso b)
{
phanso Tong = new phanso();
Tong.ts = this.ts * b.ms + b.ts * this.ms;
Tong.ms = this.ms + b.ms;
Tong.ToiGian();
return(Tong);
}
// hiệu hai phân số -------------------------------------------------------------------
public phanso Hieu(phanso b)
{
phanso hieu = new phanso();
hieu.ts = this.ts * b.ms - b.ts * this.ms;
hieu.ms = this.ms + b.ms;
hieu.ToiGian();
return(hieu);
}
