during the transaction of 112 coin to myself i have a fee of 0.0001, so i need to send myself 112.0001 right? the masternode started sucessfully with only 112 but i don't know if does it really works...
I think you should exactly send 112 coins and paying the fee from the wallet you are sending.
Try to send exactly 112 coins, then probably a pop up window will show up for the option of paying the fee from the sender wallet.