A watermelon is distributed to 8 people on average, and 5 people eat ((())/(())) of this watermelon.
一个西瓜平均分给8个人吃，5个人共吃到这个西瓜的((())/(()))．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">5 * (1/8)</gadget>
<output>5/8 = around 0.625</output>

<result>5/8 = around 0.625</result>