The number of cities with insufficient water supply in my country accounts for (2/3) of the total number of cities in the country, and (1/4) of the cities are seriously short of water. The number of cities with severe water shortage accounts for a fraction of the total number of cities ?
我国供水不足的城市个数占全国总城市的(2/3)，其中又有(1/4)的城市严重缺水，全国严重缺水的城市个数占总城市个数的几分之几？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(2/3) * (1/4)</gadget>
<output>1/6 = around 0.166667</output>

<result>1/6 = around 0.166667</result>