1______________1 5+________14+_____13+___2

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1______________1 5+________14+_____13+___2
1
______________
1
5+________
1
4+_____
1
3+___
2

1______________1 5+________14+_____13+___2
157分之30,不一定对

题目就这样？

不好懂~

105