There are 480 students in the sixth grade in Chuzhou Experimental Primary School, and there are more students in the fifth grade than in the sixth grade (3/8). How many students are there in the fifth and sixth grades?
楚州实验小学六年级学生有480人，五年级比六年级多(3/8)，五六年级一共有学生多少人？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 + (3/8)</gadget>
<output>11/8 = around 1.375</output>

<gadget id="calculator">480 * (11/8)</gadget>
<output>660</output>

<gadget id="calculator">660 + 480</gadget>
<output>1_140</output>

<result>1_140</result>