There are more boys than girls in my class (1/3), what percentage of the whole class are girls
我班男生比女生多(1/3)，则女生占全班人数的多少
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 + (1/3)</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">1 * (4/3)</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">1 + (4/3)</gadget>
<output>7/3 = around 2.333333</output>

<gadget id="calculator">1 / (7/3)</gadget>
<output>3/7 = around 0.428571</output>

<result>3/7 = around 0.428571</result>