(3/4) is a number (6/7), what is this number?
(3/4)是一个数的(6/7)，这个数是多少？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

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

<gadget id="calculator">(3/4) / (6/7)</gadget>
<output>7/8 = around 0.875</output>

<result>7/8 = around 0.875</result>