A number (4/25) is 28, what is this number.
一个数的(4/25)是28，这个数是多少．
<gadget id="calculator">4 / 25</gadget>
<output>4/25 = around 0.16</output>

<gadget id="calculator">28 / (4/25)</gadget>
<output>175</output>

<result>175</result>