There are 60 tables in the classroom, how many of them are transported away (2/3).
教窒里有桌子60张，运走它的(2/3)，运走了多少张．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">60 * (2/3)</gadget>
<output>40</output>

<result>40</result>