There are (4/5) students in a class who participated in the mathematics competition, and the winners accounted for (1/4) of the number of participants, so how many of the winners accounted for the whole class.
某班有(4/5)的同学参加了数学竞赛，其中获奖的占参赛人数的(1/4)，那么获奖的占全班的多少．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

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

<gadget id="calculator">1 * (4/5) * (1/4)</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>