4÷2=2 (piece)
Xiao Fang has four more apples than Xiao Ming. After the two split it equally, Xiao Fang gave Xiao Ming two apples, as many as two.
You can do it yourself. Xiao Ming got two apples, now there are 4+2=6 apples, Xiao Fang lost two apples, and 8-2=6 apples. Are equal.
Please adopt it, thank you!