The blood in the adult body is about (1/13) of the body weight, and the blood contains 48% water. Uncle Li's weight is 78 kg, how many kg of water is in his blood?
成人体内血液约是体重的(1/13)，血液中含有48%的水．李叔叔的体重是78千克，他的血液中含有多少千克水？
<gadget id="calculator">1 / 13</gadget>
<output>1/13 = around 0.076923</output>

<gadget id="calculator">48 / 100</gadget>
<output>12/25 = around 0.48</output>

<gadget id="calculator">78 * (1/13) * (12/25)</gadget>
<output>72/25 = around 2.88</output>

<result>72/25 = around 2.88</result>