1/2,0.4,0.375,4/11,5/14规律( )分数,( )百分数?

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1/2,0.4,0.375,4/11,5/14规律()分数,()百分数?1/2,0.4,0.375,4/11,5/14规律()分数,()百分数?1/2,0.4,0.375,4/11,5/14规律()分

1/2,0.4,0.375,4/11,5/14规律( )分数,( )百分数?
1/2,0.4,0.375,4/11,5/14规律( )分数,( )百分数?

1/2,0.4,0.375,4/11,5/14规律( )分数,( )百分数?
前几项是1/2,2/5,3/8,4/11,5/14.
每项与前一项相比,分子加1,分母加3.
后面是6/17,7/20=35%.