One ton of cargo is divided into 5 parts on average, how many tons does 4 parts weigh?
一吨货物平均分成5份，4份重多少吨
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 * (4/5)</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>