The number of A is 120, and the number of B is less than the number of A (1/5). By what percentage is number A greater than number B?
甲数是120，乙数比甲数少(1/5)．甲数比乙数多几分之几？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">120 * (4/5)</gadget>
<output>96</output>

<gadget id="calculator">120 - 96</gadget>
<output>24</output>

<gadget id="calculator">24 / 96</gadget>
<output>1/4 = around 0.25</output>

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