Summarization help

Michael · 2006-06-08T19:01:36+00:00

Can someone explain to me exactly how you get to these answers from this question? Its a question from my Cisco Press CCNP flash cards.What is the best summarization for:10.0.152.0/2110.0.160.0/2110.0.168.0/2110.0.176.0/2110.0.184.0/2210.0.188.0/22I know the answers are 10.0.152.0/21 and 10.0.160.0/19, but I am a bit confused as to how you work out the problem to find these solutions, especially for the 10.0.160.0/19. Any help is appreciated.