The total number of swimming team and chorus team is 56, and the ratio of swimming team and chorus team is 2:5. How many members are there in the chorus team?
游泳队与合唱队总人数是56人，游泳队与合唱队人数的比是2：5，合唱队有多少队员？
<gadget id="calculator">2 + 5</gadget>
<output>7</output>

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

<gadget id="calculator">56 * (5/7)</gadget>
<output>40</output>

<result>40</result>