There are 24 kg of sugar, I ate (5/8), the rest is how much I ate
有24千克糖，吃了(5/8)，剩下的是吃了的多少
<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>

<gadget id="calculator">(3/8) / (5/8)</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>