There are 25 people in group A and 15 people in group B, how much more people in group A than in group B
甲组有25人，乙组有15人，甲组人数比乙组人数多多少
<gadget id="calculator">25 - 15</gadget>
<output>10</output>

<gadget id="calculator">10 / 15</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>