Divide 6 by (1/3) of (6/7), what is the quotient?
用(6/7)的(1/3)除6，商是多少？
<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">6 / (2/7)</gadget>
<output>21</output>

<result>21</result>