5⼀7×1×5⼀7×4⼀7等于几分之几

5/7×1×5/7×4/7等于几分之几
2025-03-20 09:43:20
推荐回答(1个)
回答1:

5/7×1×5/7×4/7
=(5×5×4)/(7×7×7)
=100/343