2 plus (1/3) of a number is just as much as (7/18) of it. Find this number?
2加上一个数的(1/3)恰好与它的(7/18)同样多，求这个数？
<gadget id="calculator">7 / 18</gadget>
<output>7/18 = around 0.388889</output>

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

<gadget id="calculator">(7/18) - (1/3)</gadget>
<output>1/18 = around 0.055556</output>

<gadget id="calculator">2 / (1/18)</gadget>
<output>36</output>

<result>36</result>