A school football team has 42 people, the number of basketball team is the football team (5/6), and the volleyball team is (7/8). How many people are there on the volleyball team?
某校足球队有42人，篮球队的人数是足球队的(5/6)，又是排球队的(7/8)．排球队有多少人？
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">(5/6) / (7/8)</gadget>
<output>20/21 = around 0.952381</output>

<gadget id="calculator">42 * (20/21)</gadget>
<output>40</output>

<result>40</result>