The ratio of the two numbers of A and B is 3:2, how much more is the number of A than the number of B.
甲乙两数的比是3：2，甲数比乙数多多少．
<gadget id="calculator">3 - 2</gadget>
<output>1</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>