The number of boys in Class 1, Grade 6 is that of girls (3/2), so how many girls account for the whole class?
六年级1班男生是女生的(3/2)，那么女生占全班人数的多少．
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">1 + (3/2)</gadget>
<output>5/2 = around 2.5</output>

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

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