There are 480 girls in Hope Primary School, which is 40 less than the number of boys (4/5). How many students are there in Hope Primary School?
希望小学有女生480人，比男生人数的(4/5)少40人，希望小学有学生多少人？
<gadget id="calculator">480 + 40</gadget>
<output>520</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">520 / (4/5)</gadget>
<output>650</output>

<gadget id="calculator">650 + 480</gadget>
<output>1_130</output>

<result>1_130</result>