There are 360 chickens in the farm. The number of geese is as many as chickens (7/9) and more than ducks (1/3). How many ducks are there?
养殖场有鸡360只，鹅的只数是鸡的(7/9)，又比鸭多(1/3)，鸭有多少只？
<gadget id="calculator">7 / 9</gadget>
<output>7/9 = around 0.777778</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 + (1/3)</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">(7/9) / (4/3)</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">360 * (7/12)</gadget>
<output>210</output>

<result>210</result>