-17+23+(-16)-(-7)?
答案:2 悬赏:30 手机版
解决时间 2021-04-16 19:10
- 提问者网友:流星是天使的眼泪
- 2021-04-16 15:22
-17+23+(-16)-(-7)?
最佳答案
- 五星知识达人网友:duile
- 2021-04-16 16:22
-17+23+(-16)-(-7)
= - 17+(23-16-7)
= -17+0
= -17
三分之二-六分之五-八分之七+十二分之一
= 2/3 - 5/6 - 7/8 + 1/12
= 2/3 - (1/2+1/3) - 7/8 + (1/3-1/4)
= 2/3 - 1/2+1/3 - 7/8 + 1/3-1/4
= (2/3+1/3+1/3) - (1/2+7/8+1/4)
= (1+1/3) - (1+5/8)
= 1/3-5/8
= (8-15)/24
= -7/24
0-二十一又三分之二+(+三有四分之一)-(-三分之二)-(+四分之一)
= 0 - (11+2/3) + (3+1/4) - (-2/3) - (1/4)
= (0-11+3) + (-2/3+1/4+2/3-1/4)
= -8+0
= -8追问你答案全错了吧追答哦?
请您说说全对的在哪里?追问应该是-3 二十四分之二十三 -18追答-17+23+(-16)-(-7)
= - 17+23-16+7
= -3
三分之二-六分之五-八分之七+十二分之一
= 2/3 - 5/6 - 7/8 + 1/12
= (2/3 - 5/6 + 1/12) - 7/8
= (8/12 - 10/12 + 1/12) - 7/8
= -1/12-7/8
= -2/24-21/24
= -23/24
0-二十一又三分之二+(+三有四分之一)-(-三分之二)-(+四分之一)
= 0 - (21+2/3) + (3+1/4) - (-2/3) - (1/4)
= (0-21+3) + (-2/3+1/4+2/3-1/4)
= -18+0
= -18
= - 17+(23-16-7)
= -17+0
= -17
三分之二-六分之五-八分之七+十二分之一
= 2/3 - 5/6 - 7/8 + 1/12
= 2/3 - (1/2+1/3) - 7/8 + (1/3-1/4)
= 2/3 - 1/2+1/3 - 7/8 + 1/3-1/4
= (2/3+1/3+1/3) - (1/2+7/8+1/4)
= (1+1/3) - (1+5/8)
= 1/3-5/8
= (8-15)/24
= -7/24
0-二十一又三分之二+(+三有四分之一)-(-三分之二)-(+四分之一)
= 0 - (11+2/3) + (3+1/4) - (-2/3) - (1/4)
= (0-11+3) + (-2/3+1/4+2/3-1/4)
= -8+0
= -8追问你答案全错了吧追答哦?
请您说说全对的在哪里?追问应该是-3 二十四分之二十三 -18追答-17+23+(-16)-(-7)
= - 17+23-16+7
= -3
三分之二-六分之五-八分之七+十二分之一
= 2/3 - 5/6 - 7/8 + 1/12
= (2/3 - 5/6 + 1/12) - 7/8
= (8/12 - 10/12 + 1/12) - 7/8
= -1/12-7/8
= -2/24-21/24
= -23/24
0-二十一又三分之二+(+三有四分之一)-(-三分之二)-(+四分之一)
= 0 - (21+2/3) + (3+1/4) - (-2/3) - (1/4)
= (0-21+3) + (-2/3+1/4+2/3-1/4)
= -18+0
= -18
全部回答
- 1楼网友:英雄的欲望
- 2021-04-16 17:02
-3 -3 =6-16+7 =-10+7 =-3 -17+23+(-16)-(-7)=-17+23-16+7=-3
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