A class has 2 more girls than the whole class (3/5), and 18 boys. How many people are there in the class?
一个班女生比全班人数的(3/5)多2人，男生有18人，全班有多少人？
<gadget id="calculator">18 + 2</gadget>
<output>20</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">20 / (2/5)</gadget>
<output>50</output>

<result>50</result>