If 1! =1, 2! =1*2, 3! =1*2*3, ...then (4!+8!)/5! = how much.
如果1！=1，2！=1*2，3！=1*2*3，…那么(4！+8！)/5！=多少．
<gadget id="calculator">1 * 2 * 3 * 4</gadget>
<output>24</output>

<gadget id="calculator">1 * 2 * 3 * 4 * 5 * 6 * 7 * 8</gadget>
<output>40_320</output>

<gadget id="calculator">24 + 40_320</gadget>
<output>40_344</output>

<gadget id="calculator">1 * 2 * 3 * 4 * 5</gadget>
<output>120</output>

<gadget id="calculator">40_344 / 120</gadget>
<output>1_681/5 = around 336.2</output>

<result>1_681/5 = around 336.2</result>