Partition (subnet) a network

You are a network administrator. You are given this network:

201.20.30.160/255.255.255.224

Partition it into three subnets.

The first subnet should contain the first half of the given network.
The second subnet should contain the third quarter of the given network.
The third should contain the fourth quarter of the given network.

Use the same notation as given above to identify the overall network, to identify/express its three component subnets.

Annotate this page with the three subnets' identities on the three lines below. Print it out and do so manually, then scan or photograph the page, or annotate this page electronically. Either way, produce a file named "subnetting.jpg" (or .png) and upload it.

First subnet:                                                                                                                                   

Second subnet:                                                                                                                               

Third subnet: