power plant used 720 tons of water in the first half of the year, and 1/6 of the water consumption in the second half of the year. How many tons of water are shared throughout the year?
某发电厂上半年用水720吨，下半年用水量是上半年的(1/6)，全年共用水多少吨？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">720 * (1/6)</gadget>
<output>120</output>

<gadget id="calculator">720 + 120</gadget>
<output>840</output>

<result>840</result>