1=3/3=( )/4=5/( )=( )/8=21/( )=( )/30

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1=3/3=()/4=5/()=()/8=21/()=()/301=3/3=()/4=5/()=()/8=21/()=()/301=3/3=()/4=5/()=()/8=21/()=()/301=3/

1=3/3=( )/4=5/( )=( )/8=21/( )=( )/30
1=3/3=( )/4=5/( )=( )/8=21/( )=( )/30

1=3/3=( )/4=5/( )=( )/8=21/( )=( )/30
1=3/3=( 4)/4=5/(5 )=( 8)/8=21/( 21)=(30 )/30