A rope is (4/5) meters long. First cut half of it, and then cut the remaining half... After cutting 4 times, how long is the remaining part in meters?
一根绳子长(4/5)米，先剪下它的一半，再把剩下的剪下一半…剪4次后，剩下的部分长多少米．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) * (1/2) * (1/2) * (1/2)</gadget>
<output>1/16 = around 0.0625</output>

<gadget id="calculator">(4/5) * (1/16)</gadget>
<output>1/20 = around 0.05</output>

<result>1/20 = around 0.05</result>