7分之6-7分之6÷3分之2×6分之1能简便就简便

更新时间：2018-06-25 19:06:26 133次访问

14分之9，先乘除后加减

原式=6/7-6/7x3/2x1/6

=6/7(1-1/4)

=6/7x3/4

=9/14

6/7-6/7÷2/3x1/6

=6/7x1-6/7x3/2x1/6

=6/7x(1-3/2x1/6)

=6/7x(1-1/4)

=6/7x3/4

=18/28=9/14

回答完毕，顺祝学习进步！