After research, the weight of a person is about 12 times the mass of blood, and Xiao Ming's weight is 67.2 kg. How many kilograms does the blood in his body weigh? (column equation solution)
经研究，人的体重约是血液质量的12倍，小明的体重是67.2千克．他体内的血液重多少千克？(列方程解答)
<gadget id="calculator">67.2 / 12</gadget>
<output>5.6</output>

<result>5.6</result>