The blood in the body of an adult accounts for about 1/13 of the body weight. Mr. Wang weighs 65kg. How much does the blood weigh?
成年人身体里的血液约占体重的(1/13)，王老师体重65kg，血液重多少千克？
<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>