There are 54 students in Class 1 of June. The ratio of male to female students is 5:4. How many more boys than girls?
六1班有学生54人，男女生人数比是5：4，男生比女生多多少人．
<gadget id="calculator">5 + 4</gadget>
<output>9</output>

<gadget id="calculator">54 / 9</gadget>
<output>6</output>

<result>6</result>