The number A is 2 more than the number B (1/4). If the number A is 12, what is the number B?
甲数比乙数的(1/4)多2，若甲数为12，则乙数为多少．
<gadget id="calculator">12 - 2</gadget>
<output>10</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">10 / (1/4)</gadget>
<output>40</output>

<result>40</result>