The product of two inner terms of a ratio is 1, one of the outer terms is 8, and what is the other outer term.
一个比例两个内项的积是1，其中一个外项是8，另一个外项是多少．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<result>1/8 = around 0.125</result>