((1*2*4+2*4*8+3*6*12+…+1000*2000*4000)/(1*3*9+2*6*18+3*9*27+…+ 1000*3000*9000))=how much.
((1*2*4+2*4*8+3*6*12+…+1000*2000*4000)/(1*3*9+2*6*18+3*9*27+…+1000*3000*9000))=多少．
<gadget id="calculator">1 * 2 * 4</gadget>
<output>8</output>

<gadget id="calculator">1 * 3 * 9</gadget>
<output>27</output>

<gadget id="calculator">8 / 27</gadget>
<output>8/27 = around 0.296296</output>

<result>8/27 = around 0.296296</result>