The fruit supermarket buys 2 tons of new fruits, sells (1/4) of the total on the first day, and sells (5/8) of the total on the second day. How much is left unsold?
水果超市新进2吨水果，第一天卖出总数的(1/4)，第二天卖出总数的(5/8)．还剩下几分之几没有卖出？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">1 - (1/4) - (5/8)</gadget>
<output>1/8 = around 0.125</output>

<result>1/8 = around 0.125</result>