What is the quotient when dividing the difference between the sum of 2.87 and 1.13?
用2.87与1.13的和除它们的差，商是多少？
<gadget id="calculator">2.87 - 1.13</gadget>
<output>1.74</output>

<gadget id="calculator">2.87 + 1.13</gadget>
<output>4</output>

<gadget id="calculator">1.74 / 4</gadget>
<output>0.435</output>

<result>0.435</result>