The school holds a sports meeting. There are 64 students participating in the race. The high jump students are running (7/16), and the long jump students are high jump (5/7). How many students are participating in the long jump?
学校举行运动会，参加赛跑的有64名同学，跳高的同学是赛跑的(7/16)，跳远的同学是跳高的(5/7)，参加跳远的有多少名同学？
<gadget id="calculator">7 / 16</gadget>
<output>7/16 = around 0.4375</output>

<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">64 * (7/16) * (5/7)</gadget>
<output>20</output>

<result>20</result>