In a ratio, the product of two outer terms is (2/3), one inner term is 5, and the other inner term is what.
在一个比例中，两个外项的积是(2/3)，其中一个内项是5，另一个内项是多少．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(2/3) / 5</gadget>
<output>2/15 = around 0.133333</output>

<result>2/15 = around 0.133333</result>