(3/4) of a number is 36, what is the difference between this number and (3/4) of 36?
一个数的(3/4)是36，这个数与36的(3/4)相差多少．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">36 / (3/4)</gadget>
<output>48</output>

<gadget id="calculator">36 * (3/4)</gadget>
<output>27</output>

<gadget id="calculator">48 - 27</gadget>
<output>21</output>

<result>21</result>