There are 80 boys in the sixth grade, more than girls (1/4). How many girls are there?
六年级有男生80人，比女生多(1/4)，女生有多少人？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">80 / (5/4)</gadget>
<output>64</output>

<result>64</result>