There are 48 students in a class, and they know at least the same about the two activities of swimming and cycling. Among them, those who can swim (7/12), those who can ride a bicycle and swim (1/4), how many people can ride a bicycle.
某班有学生48人，他们对游泳和骑自行车这两项活动至少会一样．其中会游泳的占(7/12)，既会骑自行车又会游泳的占(1/4)，会骑自行车的有多少人．
<gadget id="calculator">7 / 12</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">48 * (7/12)</gadget>
<output>28</output>

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

<gadget id="calculator">48 * (1/4)</gadget>
<output>12</output>

<gadget id="calculator">28 - 12</gadget>
<output>16</output>

<gadget id="calculator">48 - 16</gadget>
<output>32</output>

<result>32</result>