The number of footballs is less than the number of basketballs (1/7), and the number of basketballs is more than the number of footballs
足球个数比篮球个数少(1/7)，篮球个数比足球个数多多少
<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">1 - (1/7)</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">(1/7) / (6/7)</gadget>
<output>1/6 = around 0.166667</output>

<result>1/6 = around 0.166667</result>