In order to measure the comprehensive fuel consumption of a certain brand of car, Xiao Wang drove a total of 128km in the suburbs, on the expressway around the city and in the urban area. How much dry rice did you have?
为了测算某品牌汽车的综合油耗，小王驾车在郊区、环城高速和市区共行驶了128km，其中在郊区和环城高速行驶的路程各占全程的40%，该汽车在市区共行驶了多少干米？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/5) * 2</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 - (4/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">128 * (1/5)</gadget>
<output>128/5 = around 25.6</output>

<result>128/5 = around 25.6</result>