The number of girls in Class 61 accounts for (3/5) of the whole class, and the number of girls is equivalent to ((())/(())) of the number of boys.
六一班女生人数占全班人数的(3/5)，女生人数相当于男生人数的((())/(()))．
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>