The canteen shipped 320 kilograms of rice, which was eaten 4 days ago (5/8). According to this calculation, how many days can the remaining rice be eaten?
食堂运来大米320千克，前4天吃了(5/8)，照这样计算，剩下的大米还可以吃几天？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">(5/8) / 4</gadget>
<output>5/32 = around 0.15625</output>

<gadget id="calculator">1 / (5/32)</gadget>
<output>32/5 = around 6.4</output>

<gadget id="calculator">(32/5) - 4</gadget>
<output>12/5 = around 2.4</output>

<result>12/5 = around 2.4</result>