Divide a piece of cake into 4 parts on average, take 3 of them, and express the number in fractions.
把一块蛋糕平均分成4份，取其中的3份，用分数表示是多少．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<result>3/4 = around 0.75</result>