Divide (6/7) meter long iron wire into 3 parts on average, how much is 1 meter in each part.
把(6/7)米长的铁丝平均分成3份，每份是1米的多少．
<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">(6/7) / 3 / 1</gadget>
<output>2/7 = around 0.285714</output>

<result>2/7 = around 0.285714</result>