Grandma Li's family has 12 chickens, the number of ducks is chicken (3/4), and the number of goose (9/10). How many geese are there?
李奶奶家养鸡12只，鸭的只数是鸡的(3/4)，又是鹅的(9/10)．鹅有多少只？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">(3/4) / (9/10)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">12 * (5/6)</gadget>
<output>10</output>

<result>10</result>