The difference between 0.5 and 0.26 is divided by 0.48, plus 4.2, what is the sum?
0.5与0.26的差除0.48，再加上4.2，和是多少？
<gadget id="calculator">0.5 - 0.26</gadget>
<output>0.24</output>

<gadget id="calculator">0.48 / 0.24</gadget>
<output>2</output>

<gadget id="calculator">2 + 4.2</gadget>
<output>6.2</output>

<result>6.2</result>