If number A is (4/5) of number B, the following correct statement is how much more number B is than number A
如果甲数是乙数的(4/5)，下面正确的说法是乙数比甲数多多少
<gadget id="calculator">5 - 4</gadget>
<output>1</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>