Calculation: (3.9*5.5*6.3*3.6)/(1*3*5*7*0.9*1.1*1.3)=how much.
计算：(3.9*5.5*6.3*3.6)/(1*3*5*7*0.9*1.1*1.3)=多少．
<gadget id="calculator">3.9 * 5.5 * 6.3 * 3.6</gadget>
<output>486.486</output>

<gadget id="calculator">1 * 3 * 5 * 7 * 0.9 * 1.1 * 1.3</gadget>
<output>135.135</output>

<gadget id="calculator">486.486 / 135.135</gadget>
<output>3.6</output>

<result>3.6</result>