2.74/7+3.26*(1-(6/7))=how much.
2.74/7+3.26*(1-(6/7))=多少．
<gadget id="calculator">2.74 / 7</gadget>
<output>0.391429</output>

<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">1 - (6/7)</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">3.26 * (1/7)</gadget>
<output>0.465714</output>

<gadget id="calculator">0.391429 + 0.465714</gadget>
<output>0.857143</output>

<result>0.857143</result>