48 is 40% of a number, what is this number?
48是一个数的40%，这个数是多少．
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">48 / (2/5)</gadget>
<output>120</output>

<result>120</result>