Calculation: ((1*2+2*4+3*6+…+100*200)/(2*3+4*6+6*9+…+200*300)).
计算：((1*2+2*4+3*6+…+100*200)/(2*3+4*6+6*9+…+200*300))．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>