(7/9) of a number is 12 more than (3/8) of 24. Find this number.
一个数的(7/9)比24的(3/8)多12，求这个数．
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">24 * (3/8)</gadget>
<output>9</output>

<gadget id="calculator">9 + 12</gadget>
<output>21</output>

<gadget id="calculator">7 / 9</gadget>
<output>7/9 = around 0.777778</output>

<gadget id="calculator">21 / (7/9)</gadget>
<output>27</output>

<result>27</result>