A watermelon is divided into 8 parts on average, and Xiao Ming eats 3 parts, then the remaining watermelon is equal to the whole watermelon
一个西瓜平均分8份，小明吃3份，则剩下的西瓜是整个西瓜的多少
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (3/8)</gadget>
<output>5/8 = around 0.625</output>

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