5⼀6×5⼀9+5⼀9×1⼀6,等于多少?

2024-11-23 02:50:22
推荐回答(1个)
回答1:

5/6×5/9+5/9×1/6
=5/9×(5/6+1/6) 乘法分配律
=5/9×1
=5/9