Solve the equation: (1/4)x+(2/3)x=(11/7).
解方程：(1/4)x+(2/3)x=(11/7)．
<gadget id="calculator">11 / 7</gadget>
<output>11/7 = around 1.571429</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(1/4) + (2/3)</gadget>
<output>11/12 = around 0.916667</output>

<gadget id="calculator">(11/7) / (11/12)</gadget>
<output>12/7 = around 1.714286</output>

<result>12/7 = around 1.714286</result>