2/3+(4/5-2/3)x5/3=?能简便就简便算,
问题描述:
2/3+(4/5-2/3)x5/3=?能简便就简便算,
答
2/3+(4/5-2/3)x5/3
=2/3+4/3-10/9
=6/3-10/9
=18/9-10/9
=8/9