Xiaoxin has 30 stamps and gave 6 to her younger brother. How much are the remaining stamps?
小欣有30张邮票，送给弟弟6张，剩下的邮票是原来的几分之几？
<gadget id="calculator">30 - 6</gadget>
<output>24</output>

<gadget id="calculator">24 / 30</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>