(2/(1+2))*((2+3)/(1+2+3))*((2+3+4)/(1+2+3+4))*...*(( 2+3+...+50)/(1+2+3+...+50)).
(2/(1+2))*((2+3)/(1+2+3))*((2+3+4)/(1+2+3+4))*…*((2+3+…+50)/(1+2+3+…+50))．
<gadget id="calculator">1 * 52</gadget>
<output>52</output>

<gadget id="calculator">50 * 3</gadget>
<output>150</output>

<gadget id="calculator">52 / 150</gadget>
<output>26/75 = around 0.346667</output>

<result>26/75 = around 0.346667</result>