There are a number of boys in the sixth grade, and there are fewer girls than boys (1/4). How many students are there in the sixth grade?
六年级有男生a人，女生比男生少(1/4)，六年级共有学生多少人．
<gadget id="calculator">7 / 4</gadget>
<output>7/4 = around 1.75</output>

<result>7/4 = around 1.75</result>