The family bought a box of 24 apples. Xiaohong and her mother each ate (1/3) of this box of apples, and gave the rest to her father. How much of this box of apples did dad eat
家中买来一箱苹果共24个，小红和妈妈各吃了这箱苹果的(1/3)，剩下的全给爸爸吃了．爸爸吃了这箱苹果的多少
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3) - (1/3)</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>