( )/16=18/?=0.375
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( )/16=18/?=0.375
( )/16=18/?=0.375
( )/16=18/?=0.375
0.375=3/8
x/16=3/8
x=6
18/y=3/8
y=8*18/3=48
( 6)/16=18/(48)=0.375
( )/16=18/?=0.375
( )/16=18/?=0.375
( )/16=18/?=0.375
0.375=3/8
x/16=3/8
x=6
18/y=3/8
y=8*18/3=48
( 6)/16=18/(48)=0.375