The road noise in a certain city is 80 decibels. After afforestation, the road noise is reduced (1/8). How many decibels do people hear on the road now?
某城市公路噪音为80分贝，绿化造林后公路噪音降低(1/8)，现在人们听到的公路多少分贝．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 - (1/8)</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">80 * (7/8)</gadget>
<output>70</output>

<result>70</result>