找规律!急急!!!!!(1).1/2,1/3,3/2,2/9，( ) ( )(2)1,1/2,3/2,2，( )(3)3/2÷6= 1/2÷2= 1/6÷2/3= 1/18÷( )= ( )÷( )=

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1)

3/2 = 1/2 ÷ 1/3 = 1/2 x 3

2/9 = 1/3 ÷ 3/2 = 1/3 x 2/3

() = 3/2 ÷ 2/9 = 3/2 x 9/2 = 27/4

() = 2/9 ÷ 27/4 = 2/9 x 4/27 = 8/243



2)

3/2 = 1 + 1/2

2 = 1/2 + 3/2

() = 3/2 + 2 = 7/2



3)

3/2 ÷ 3 = 1/2 & 6 ÷ 3 = 2

1/2 ÷ 3 = 1/6 & 2 ÷ 3 = 2/3



1/6 ÷ 3 =1/18 & () = 2/3 ÷ 3 = 2/9



() = 1/18 ÷ 3 = 1/54 & () = 2/9 ÷ 3 = 2/27