If the sum of 7 times a number and its (1/3) is 66, what is the number?
一个数的7倍与它的(1/3)的和是66，则这个数是多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">7 + (1/3)</gadget>
<output>22/3 = around 7.333333</output>

<gadget id="calculator">66 / (22/3)</gadget>
<output>9</output>

<result>9</result>