Three brothers buy a color TV together, the boss pays (1/2) the sum of the other two's money, the second son pays (1/3) the sum of the other two's money, the third is more than the elder Two more 400 yuan. How much is this color TV?
兄弟三人合买一台彩电，老大出的钱是其他两人出钱总数的(1/2)，老二出的钱是其他两人出钱总数的(1/3)，老三比老二多出400元．问这台彩电多少钱？
<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3 + 1</gadget>
<output>4</output>

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

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

<gadget id="calculator">400 / (1/6)</gadget>
<output>2_400</output>

<result>2_400</result>