从12 14 15 18 21 36 48 75中选出合适的数,填在括号里 ( ):( )=1:5 ( ):( )=1:2
问题描述:
从12 14 15 18 21 36 48 75中选出合适的数,填在括号里 ( ):( )=1:5 ( ):( )=1:2
答
从12 14 15 18 21 36 48 75中选出合适的数,填在括号里
( 15):( 75)=1:5
( 18):(36 )=1:2那():()=1:4():()=2:3 ():()=7:25 ():()=5:12 ():()=8:3 ():()=6:7( 12 ):( 48 )=1:4( 12 ):( 18 )=2:3 ( 21 ):(75)=7:25 ( 15 ):(36)=5:12 ( 48 ):( 18 )=8:3 ( 18 ):( 21 )=6:7