Xiaohua reads an 81-page storybook, starting from page 1, and read it on the first day (2/9). What page should I start the next day?
小华看一本81页的故事书，从第1页开始看，第一天看了(2/9)．第二天应从第几页看起？
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">81 * (2/9)</gadget>
<output>18</output>

<gadget id="calculator">18 + 1</gadget>
<output>19</output>

<result>19</result>