A car consumes (1/9) liter of fuel per 1 km, and the distance between city A and city B is said to be 90 km, how many liters of fuel should this car prepare at least from city A to city B?
一辆汽车每行1千米耗油(1/9)升，甲城与乙称相距90千米，这辆汽车从甲城到乙城至少要准备多少升油．
<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">(1/9) * 90</gadget>
<output>10</output>

<result>10</result>