The fifth grade students went to pave the lawn, and they paved the land in 5 hours (4/5), what fraction of the land was paved every hour?
五年级同学去铺草坪，5小时铺这块地的(4/5)，每小时铺了这块地的几分之几？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(4/5) / 5</gadget>
<output>4/25 = around 0.16</output>

<result>4/25 = around 0.16</result>