The number of boys in Helan No. 2 Primary School (1/3) is equal to the number of girls (1/2). How many girls account for the whole class
贺兰二小男生人数的(1/3)等于女生人数的(1/2)，女生人数占全班人数的多少
<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>