The number A is 25% less than the number B, how much is the number A equal to the number B
甲数比乙数少25%，甲数是乙数的多少
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<result>3/4 = around 0.75</result>