Xiao Ming weighs 52 kg and has 4 kg of blood in his body. What percentage of body weight is blood?
小明的体重52千克，体内血液有4千克．血液占体重的几分之几？
<gadget id="calculator">4 / 52</gadget>
<output>1/13 = around 0.076923</output>

<result>1/13 = around 0.076923</result>