The price of a volleyball is 120 yuan, which is less than the price of a basketball (1/5). How much is a basketball? (solution by equation)
一个排球的价钱是120元，比一个篮球的价钱少(1/5)，一个篮球多少元？(用方程解)
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">120 / (4/5)</gadget>
<output>150</output>

<result>150</result>