The blood in the body of an adult is about 1/13 of the body weight. Teacher Li weighs 65 kg. How many kg of blood does she have in her body?
成人体内血液约是体重的(1/13)，李老师的体重是65千克，她体内血液约有多少千克？
<gadget id="calculator">1 / 13</gadget>
<output>1/13 = around 0.076923</output>

<gadget id="calculator">65 * (1/13)</gadget>
<output>5</output>

<result>5</result>