A basketball is 160 yuan, which is 1/7 more expensive than a football. How much is a football?
一个篮球160元，比一个足球贵(1/7)，一个足球多少钱？
<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">1 + (1/7)</gadget>
<output>8/7 = around 1.142857</output>

<gadget id="calculator">160 / (8/7)</gadget>
<output>140</output>

<result>140</result>