The worker uncle laid the floor for the school gymnasium. The floor was laid in the morning and the afternoon (1/5). How much of it was left unfinished?
工人叔叔给学校体育馆铺地板，上午和下午各铺了(1/5)，还剩下几分之几没铺？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5) - (1/5)</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>