There are 465 students in a certain school, among which there are 20 more boys (4/5) than girls (2/3). So how many more girls than boys?
某校有学生465人，其中男生的(4/5)比女生的(2/3)多20人．那么女生比男生多多少人？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">465 * (2/3)</gadget>
<output>310</output>

<gadget id="calculator">310 + 20</gadget>
<output>330</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(4/5) + (2/3)</gadget>
<output>22/15 = around 1.466667</output>

<gadget id="calculator">330 / (22/15)</gadget>
<output>225</output>

<gadget id="calculator">465 - 225 - 225</gadget>
<output>15</output>

<result>15</result>