There are 144 people on the playground, of which long jumpers account for (2/9), and those who play long jump (1/2), how many people play?
操场上有144人，其中跳远的占(2/9)，打球的是跳远的(1/2)，打球的有多少人？
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">144 * (2/9) * (1/2)</gadget>
<output>16</output>

<result>16</result>