If A+B=60, A/B=(2/3), then (B+A)-(BA)=how much.
若A+B=60，A/B=(2/3)，则(B+A)-(B-A)=多少．
<gadget id="calculator">2 + 3</gadget>
<output>5</output>

<gadget id="calculator">60 / 5</gadget>
<output>12</output>

<gadget id="calculator">12 * 2</gadget>
<output>24</output>

<gadget id="calculator">2 * 24</gadget>
<output>48</output>

<result>48</result>