已知EF:FG和FG:GH如何求EF:FG:GH?EF:FG=1:3FG:GH=9:8EF:FG:GH=?::

问题描述:

已知EF:FG和FG:GH如何求EF:FG:GH?
EF:FG=1:3
FG:GH=9:8
EF:FG:GH=?::

设FG=9a,那么EF=3a,GH=8a
所以EF:FG:GH=3a:9a:8a=3:9:8

设FG=9a,那么EF=3a,GH=8a
所以EF:FG:GH=3a:9a:8a=3:9:8