Blood accounts for about 1/13 of a person's body weight. Teacher Wang weighs 65 kilograms. How many kilograms does his blood have?
血液约占1个人体重的(1/13)，王老师体重为65公斤，他的血液约有多少公斤？
<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>