why we borrow 3 bit from the host portion explain how I can determine how many bit I can borrow please

5- The subnet having the IP address: 222.20.128.0/20 is allocated to an organization that has 5 departments, show how to subnet this network to 5 independent networks. Give the IP address of each subnet in binary and in dotted decimal notation (a.b.c.d/x) (show your steps, only final answer not accepted) . 2. To find the new subnet masks, we need to borrow 3 bits from the host portion of the IP address. This means that the new subnet mask would be /23. 3. To find the IP address of each subnet in binary, we can use the subnet number to change the last 3 bits of the host portion of the IP address. Subnet 1: 000 (binary) Subnet 2: 001 (binary) Subnet 3: 010 (binary) Subnet 4: 011 (binary) Subnet 5: 100 (binary) So, the IP addresses for each subnet in binary are