добавил вывод частного

main.cpp

@@ -5,6 +5,8 @@ int main() {
     cout << "Enter A and B: ";
     int a, b;
     cin >> a >> b;
-    cout << "A + B = " << a + b << '\n' << "A - B = " << a - b << '\n';
+    cout << "A + B = " << a + b << '\n'
+        << "A - B = " << a - b << '\n'
+        << "A / B = " << a / b << '\n';
     return 0;
 }