> 数学 >
简便计算:[5/6-(5/12-2/5)]÷7/18
人气:316 ℃ 时间:2020-05-18 02:53:01
解答
[5/6-(5/12-2/5)]÷7/18
=[5/6-5/12+2/5]*18/7
=[5/6+2/5]*18/7
=15/7+36/35
=111/35
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版