What is the meter after adding (2/3) to 12 meters?
12米增加它的(2/3)后是多少米．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">12 * (2/3)</gadget>
<output>8</output>

<gadget id="calculator">8 + 12</gadget>
<output>20</output>

<result>20</result>