If the number of boys in a class is more than the number of girls (1/3), what is the percentage of boys in the whole class?
某班男生人数比女生人数多(1/3)，则男生人数占全班人数的多少
<gadget id="calculator">3 + 4</gadget>
<output>7</output>

<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>

<result>4/7 = around 0.571429</result>