The store shipped 420 pairs of leather shoes, sold (1/6) of the total number on the first day, and (3/5) sold on the second day, how many pairs were sold on the second day?
商店运来皮鞋420双，第一天卖出总数的(1/6)，第二天卖出的相当于第一天的(3/5)，第二天卖出多少双？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">420 * (1/6) * (3/5)</gadget>
<output>42</output>

<result>42</result>