(2/3) of a number is 5.2 more than 50% of this number, find this number.
一个数的(2/3)比这个数的50%多5.2，求这个数．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

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

<gadget id="calculator">5.2 / (1/6)</gadget>
<output>31.2</output>

<result>31.2</result>