(((1+17)*(1+(17/2))*(1+(17/3))*...*(1+(17/18))*(1+(17/19))) /((1+19)*(1+(19/2))*(1+(19/3))*…*(1+(19/16))*(1+(19/17))) ) = how much.
(((1+17)*(1+(17/2))*(1+(17/3))*…*(1+(17/18))*(1+(17/19)))/((1+19)*(1+(19/2))*(1+(19/3))*…*(1+(19/16))*(1+(19/17))))=多少．
<gadget id="calculator">136 / 231</gadget>
<output>136/231 = around 0.588745</output>

<result>136/231 = around 0.588745</result>