The ratio of the number of stamps between Xiaohong and Xiaohua is 2:5, Xiaohua has 55 stamps, how many stamps does Xiaohong have?
小红和小华邮票张数的比是2：5，小华有55张邮票，小红有邮票多少张？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">55 * (2/5)</gadget>
<output>22</output>

<result>22</result>