The number less than a number (1/4) is 24, what is 40% of this number
比一个数少(1/4)的数是24，这个数的40%是多少
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">24 / (3/4)</gadget>
<output>32</output>

<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">32 * (2/5)</gadget>
<output>64/5 = around 12.8</output>

<result>64/5 = around 12.8</result>