发布网友 发布时间:2024-10-23 17:16
我来回答
共1个回答
热心网友 时间:2024-11-08 02:12
1/4+1/28+1/70+1/130+1/208|+1/304 =2/7+1/70+1/130+1/208|+1/304 =3/10+1/130+1/208+1/304 =4/13+1/13*16+1/304 =5/16+1/16*19 =96/16*19 =6/19 不明白的再问哟,请及时采纳,多谢!