The quotient of the number A divided by the number B is (4/5), and the number A is the number B.
甲数除以乙数的商是(4/5)，甲数是乙数的多少．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>