4⼀7×0.3×7⼀9怎样用简便方法计算?

2024-12-22 02:41:06
推荐回答(2个)
回答1:

简便计算
4/7×0.3×7/9
=4/7x7/9x3/10
=4/9x3/10
=2/15

回答2:

=4/7x7/9x3/10
=4/9x3/10
=2/15