The ratio of number A to number B is 5:4, how much greater is number A than number B
甲数和乙数的比是5：4，甲数比乙数大多少
<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>