The product of two inner terms of a ratio is (2/5), one of the outer terms is 0.6, and what is the other outer term.
一个比例的两个内项的积是(2/5)，其中一个外项是0.6，另一个外项是多少．
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/5) / 0.6</gadget>
<output>0.666667</output>

<result>0.666667</result>