The former term and the latter term of a ratio are reciprocals of each other. It is known that the former term is 2.5. What is the ratio of this ratio?
一个比的前项和后项互为倒数，已知前项是2.5，这个比的比值是；多少
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">2.5 / (2/5)</gadget>
<output>6.25</output>

<result>6.25</result>