After subtracting 20% of a number, it is equal to (2/3) of 234. Find the number.
一个数减去它的20%后，等于234的(2/3)，求这个数是多少．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(2/3) / (4/5)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">234 * (5/6)</gadget>
<output>195</output>

<result>195</result>