There are 72 students with excellent grades in mathematics in the sixth grade, accounting for (3/5) of the total number. How many students are there in the sixth grade?
六年级数学成绩优秀的学生有72人，占总人数的(3/5)，六年级有多少学生？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">72 / (3/5)</gadget>
<output>120</output>

<result>120</result>