If m*4=n*5 (both m and n are not 0), then ((m)/(n))=how much.
如果m*4=n*5(m和n都不为0)，那么((m)/(n))=多少．
<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>

<result>5/4 = around 1.25</result>