A highway is 400 meters long and 320 meters have been repaired. What fraction of the full length has been trimmed?
一条公路全长400米，已修320米．已修全长的几分之几？
<gadget id="calculator">320 / 400</gadget>
<output>4/5 = around 0.8</output>

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