Thirty-two percent of a number is 6.4, what is this number?
一个数的一百分之三十二是6.4，这个数是多少？
<gadget id="calculator">32 / 100</gadget>
<output>8/25 = around 0.32</output>

<gadget id="calculator">6.4 / (8/25)</gadget>
<output>20</output>

<result>20</result>