The number of girls in a class is more than the number of boys (1/4), how many boys account for the whole class
某班女生人数比男生人数多(1/4)，男生人数占全班人数的多少
<gadget id="calculator">4 + 5</gadget>
<output>9</output>

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<result>4/9 = around 0.444444</result>