The turnover of the store in the morning accounts for (3/8) of the turnover of the whole day, and the rest is the turnover in the afternoon. How much less is the turnover in the morning than in the afternoon.
商店上午的营业额占全天营业额的(3/8)，其余是下午的营业额，上午的营业额比下午少多少．
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (3/8) - (3/8)</gadget>
<output>1/4 = around 0.25</output>

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

<gadget id="calculator">(1/4) / (5/8)</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>