What is the sum of (69/10) minus (11/15) and adding (1/2)?
(69/10)减去(11/15)的差，再加上(1/2)，和是多少？
<gadget id="calculator">69 / 10</gadget>
<output>69/10 = around 6.9</output>

<gadget id="calculator">11 / 15</gadget>
<output>11/15 = around 0.733333</output>

<gadget id="calculator">(69/10) - (11/15)</gadget>
<output>37/6 = around 6.166667</output>

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

<gadget id="calculator">(37/6) + (1/2)</gadget>
<output>20/3 = around 6.666667</output>

<result>20/3 = around 6.666667</result>