(2/7) of a number is equal to (6/7) of (7/12), what is this number?
一个数的(2/7)与(7/12)的(6/7)相等，这个数是多少？
<gadget id="calculator">7 / 12</gadget>
<output>7/12 = around 0.583333</output>

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

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

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

<gadget id="calculator">(7/12) * 3</gadget>
<output>7/4 = around 1.75</output>

<result>7/4 = around 1.75</result>