There are 72 boys and 21 girls in Class 1 of the sixth grade. The whole class accounts for 3/10 of the total number of students in the sixth grade. How many students are there in grade six?
六年级一班男生有72人，女生有21人，全班学生占六年级学生总数的(3/10)．六年级有学生多少人？
<gadget id="calculator">72 + 21</gadget>
<output>93</output>

<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">93 / (3/10)</gadget>
<output>310</output>

<result>310</result>