What is the quotient of the difference between 0.8 and (3/5) divided by the sum of these two numbers?
0.8与(3/5)的差除这两个数的和，商是多少？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">0.8 + (3/5)</gadget>
<output>1.4</output>

<gadget id="calculator">0.8 - (3/5)</gadget>
<output>0.2</output>

<gadget id="calculator">1.4 / 0.2</gadget>
<output>7</output>

<result>7</result>