There are 45 students in the sixth grade. 80% of the students passed the long jump test at the end of the last semester. How many students passed?
六年级有学生45人，上学期期末跳远测验有80%的同学及格，及格的同学有多少人？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">45 * (4/5)</gadget>
<output>36</output>

<result>36</result>