2 câu trả lời
Program Rut_gon_phan_so;
uses crt;
var tu,mau:integer;
Function UCLN(a,b:integer):integer;
var r: integer;
begin
r:= a mod b;
while r <> 0 do
begin
a:= b;
b:= r;
r:=a mod b;
end;
UCLN:=b;
end;
begin
clrscr;
write(‘Nhap tu: ‘); readln(tu);
write(‘Nhap mau: ‘); readln(mau);
write(‘Ket qua rut gon: ‘,tu,’/’,mau,’=’,tu div UCLN(tu,mau),’/’,mau div UCLN(tu,mau));
readln
end.
