During the extracurricular activities, there are 36 students playing basketball, 4/7 of them are jumping rope, and 2/9 of them are kicking the keys. How many students are playing the keys?
课外活动时间，打篮球的有36名同学，是跳绳人数的(4/7)，踢键子的人数是跳绳人数的(2/9)，踢键子的同学有多少名？
<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">36 / (4/7)</gadget>
<output>63</output>

<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">63 * (2/9)</gadget>
<output>14</output>

<result>14</result>