The number A is less than the number B by the number A (1/4), then the number B is the number A.
甲数比乙数少甲数的(1/4)，那么乙数是甲数的多少．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<result>5/4 = around 1.25</result>