[질문] 비상 파워유형편 p.46~p.55답지요

3학년:-2분의15,-6,2분의15,15,3/-4,8분의15,-12,-5분의12 3분의1,-4,4,24 21,-25/+5,-5,+1.4,-0.7 2,-3분의1,+7분의2,-5 -4분의15,+15분의8,-3분의2,-5분의8