> 数学 >
①(4\5-7\15)÷3\10
人气:460 ℃ 时间:2020-03-23 09:38:38
解答
①(4\5-7\15)÷3\10
= (4\5-7\15)x 10/3
= (12/15-7/15)x 10/3
= 1/3 x 10/3
= 10/9
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版