2/7x÷9/14=3/8
问题描述:
2/7x÷9/14=3/8
解方程顺便带算式,验算
答
2/7x÷9/14=3/8
2/7x×14/9=3/8
4/9x=3/8
x=3/8×9/4
=27/32