A whale is 7.2 meters long, and its head accounts for 3/8 of its body length. How long is the head of this whale?
一头鲸长7.2米，头部长占全身长的(3/8)．这头鲸的头部长多少米？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">7.2 * (3/8)</gadget>
<output>2.7</output>

<result>2.7</result>