A watermelon weighs 5 kilograms, (5/8) of this watermelon has been eaten, and ((())/(())) of this watermelon is left uneaten.
一个西瓜重5千克，已经吃了这个西瓜的(5/8)，还剩下这个西瓜的((())/(()))没有吃．
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">1 - (5/8)</gadget>
<output>3/8 = around 0.375</output>

<result>3/8 = around 0.375</result>