The price of a basketball is 120 yuan, the price of a volleyball is (1/3) of the price of a basketball, and the price of a football is (1/2) of the price of a volleyball. How much is a football?
一个篮球的价钱是120元，一个排球的价钱是一个篮球的价钱的(1/3)，一个足球的价钱是一个排球价钱的(1/2)，一个足球多少钱？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">120 * (1/3) * (1/2)</gadget>
<output>20</output>

<result>20</result>