Six 1 has 45 students, accounting for (3/10) of the total number of sixth grade students. How many students are there in grade six?
六1有学生45人，占六年级学生总人数的(3/10)．六年级有学生多少人？
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">45 / (3/10)</gadget>
<output>150</output>

<result>150</result>