Lingling goes to school from home, walks 60 meters per minute, and can walk to school in 15 minutes. If she walks 75 meters per minute, can she arrive at school a few minutes earlier?
玲玲从家去学校，每分钟走60米，15分钟可以走到学校，如果每分钟走75米，可以提前几分钟到学校？
<gadget id="calculator">15 / 75</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">60 * (1/5)</gadget>
<output>12</output>

<gadget id="calculator">15 - 12</gadget>
<output>3</output>

<result>3</result>