The school bought 36 volleyballs, bought less footballs than volleyballs (3/4), how many fewer footballs bought than volleyballs?
学校买了36个排球，买的足球比排球少(3/4)，买的足球比排球少多少个？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">36 * (3/4)</gadget>
<output>27</output>

<result>27</result>