The kilogram of chicken sold in the convenience meat market is 3/5 of that of pork, and the kilogram of pork sold is 4/5 of that of beef. The total of chicken and pork sold is 1152 kilograms. How many kilograms of beef are sold?
便民肉菜市场售出的鸡肉的千克数是猪肉的3/5，售出的猪肉千克数是牛肉的4/5，售出的鸡肉、猪肉共1152千克，售出牛肉多少千克？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(4/5) * (3/5)</gadget>
<output>12/25 = around 0.48</output>

<gadget id="calculator">(4/5) + (12/25)</gadget>
<output>32/25 = around 1.28</output>

<gadget id="calculator">1_152 / (32/25)</gadget>
<output>900</output>

<result>900</result>