Aunt Li typed a manuscript at 60 characters per minute, and it took 30 minutes to finish typing. If she typed more (1/4) per minute, how many minutes would it take to finish typing? (answer with ratio)
李阿姨打一份稿件，每分钟打60个字，需要30分钟打完，如果每分钟多打(1/4)，需要多少分钟打完？(用比例解答)
<gadget id="calculator">60 * 30</gadget>
<output>1_800</output>

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

<gadget id="calculator">60 * (1/4)</gadget>
<output>15</output>

<gadget id="calculator">60 + 15</gadget>
<output>75</output>

<gadget id="calculator">1_800 / 75</gadget>
<output>24</output>

<result>24</result>