There are 45 members in the chorus, and (2/3) of them are girls. How many girls are there in this chorus?
合唱队共有45人，其中(2/3)是女生，这个合唱队女生有多少人？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">45 * (2/3)</gadget>
<output>30</output>

<result>30</result>