[3-(6/5+1/3)]*4/15{脱式计算,能简算要简算}
问题描述:
[3-(6/5+1/3)]*4/15{脱式计算,能简算要简算}
答
3-(6/5+1/3)]*4/15
=3-23/15*4/15
=3-92/225
=2又133/225
*改除号可简便运算