A, B, C, and D jointly buy a car, and the money that A gets is the money of the other three people (2/7), then the money that A gets takes up the price of the car ((())/(())).
甲乙丙丁四人合买一辆汽车，其中甲拿的钱是其余三人钱的(2/7)，那么甲拿的钱占这辆汽车价钱的((())/(()))．
<gadget id="calculator">2 + 7</gadget>
<output>9</output>

<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<result>2/9 = around 0.222222</result>