Divide 12 discs into 3 parts on average, 2 of which account for (2/3) of these discs, how many discs are there?
把12个圆片平均分成3份，其中的2份占这些圆片的(2/3)，有多少个圆片．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

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

<result>8</result>