The quotient of number A divided by number B is 0.8, and number B is the number of A.
甲数除以乙数商是0.8，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>