The number of boys in class 51 is less than that of girls (1/8), so what percentage of the whole class are girls?
五1班男生人数比女生少(1/8)，那么女生占全班人数的几分之几？
<gadget id="calculator">8 + 7</gadget>
<output>15</output>

<gadget id="calculator">8 / 15</gadget>
<output>8/15 = around 0.533333</output>

<result>8/15 = around 0.533333</result>