The number of footballs is more than that of basketballs (1/6), the number of footballs is only that of basketballs ((())/(())), the number of basketballs is less than that of footballs ((())/(())), the number of footballs is What is the ratio of the number of balls to the total number of two balls.
足球只数比篮球多(1/6)，足球只数是篮球的((())/(()))，篮球的只数比足球少((())/(()))，足球的只数和两种球总只数的比是多少．
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 + (1/6)</gadget>
<output>7/6 = around 1.166667</output>

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

<gadget id="calculator">(1/6) / (7/6)</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">1 / (1/7) / 13</gadget>
<output>7/13 = around 0.538462</output>

<result>7/13 = around 0.538462</result>