If the ratio of the numbers A and B is 4:5, then the number B is the number A
甲乙两数的比是4：5，则乙数是甲数的多少
<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>

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