There are 720 chickens in the farm. The number of geese is 5/6 of chickens and 3/4 of ducks. How many ducks are there?
养殖场养有鸡720只，鹅的只数是鸡的(5/6)又是鸭的(3/4)，鸭有多少只？
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(5/6) / (3/4)</gadget>
<output>10/9 = around 1.111111</output>

<gadget id="calculator">720 * (10/9)</gadget>
<output>800</output>

<result>800</result>