What is the sum of (2/3) of 1 hour and (1/3) of 2 hours?
1小时的(2/3)与2小时的(1/3)一共是多少分．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

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

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">120 * (1/3)</gadget>
<output>40</output>

<gadget id="calculator">40 + 40</gadget>
<output>80</output>

<result>80</result>