A piece of cake is cut into 8 pieces on average, mother ate 3 pieces, Xiaoyue ate 2 pieces, how much of this piece of cake is left.
一块饼平均切成8块，妈妈吃了3块，小月吃了2块，还剩下这块饼的多少．
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">2 / 8</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (3/8) - (1/4)</gadget>
<output>3/8 = around 0.375</output>

<result>3/8 = around 0.375</result>