3/( )=0.375=24/()=21/( )

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3/( )=0.375=24/()=21/( )

3/( )=0.375=24/()=21/( )
3/( )=0.375=24/()=21/( )

3/( )=0.375=24/()=21/( )
3/(8)=0.375=24/(64)=21/(56)

【1.125】 【64】【56】