44乘以,四十五分之七,乘以七分之五简便运算?

2025-06-26 23:57:55
推荐回答(1个)
回答1:

44×7/45×5/7
=44×(7/45×5/7)
=44×1/9
=(45-1)×1/9
=45×1/9-1×1/9
=5-1/9
=4又8/9