If 100 sheets of paper of the same thickness are stacked together with a thickness of (4/5) cm, how many sheets of this paper are needed to make a layer of 5 cm thick paper?
将100张同样厚的纸叠在一起，厚度为(4/5)cm，要叠成5cm厚的纸层，需要这样的纸多少张？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(4/5) / 100</gadget>
<output>1/125 = around 0.008</output>

<gadget id="calculator">5 / (1/125)</gadget>
<output>625</output>

<result>625</result>