4分之3乘9减4分之3.,急
问题描述:
4分之3乘9减4分之3.,急
答
4分之3乘9减4分之3.,急
= 3/4 x 9 - 3/4 x 1
= 3/4 x ( 9-1)
= 3 /4 x 8
= 6