If A*(4/5)=B/(4/5) (both A and B are 0), what is the ratio of A to B
若A*(4/5)=B/(4/5)(A、B都不为0)，那么A与B的比值为多少
<gadget id="calculator">25 / 16</gadget>
<output>25/16 = around 1.5625</output>

<result>25/16 = around 1.5625</result>