On June 1 Children's Day, the school had a party and bought 12kg of fruit candy. The toffee was fruit candy (2/3), and the halva (4/5). The school bought halva How many kilograms.
六•一儿童节，学校开联欢会，买了水果糖12千克，买的奶糖是水果糖的(2/3)，又是买的酥糖的(4/5)，学校买了酥糖多少千克．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(2/3) / (4/5)</gadget>
<output>5/6 = around 0.833333</output>

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

<result>10</result>