The Chinese sports delegation won 120 gold medals in the 13th Asian Games, and 150 gold medals in the 14th Asian Games. How much has it increased?
中国体育代表团在第十三届亚运会中获得金牌120枚，在第十四届亚运会中获得金牌150枚，增长了多少．
<gadget id="calculator">150 - 120</gadget>
<output>30</output>

<gadget id="calculator">30 / 120</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>