I separated the meat on my fish very carefully from the bone then I ate it.
I took the pit out of my peach carefully before I ate it.
この場合、次のような言い方ができますよ。
ーI separated the meat on my fish very carefully from the bone then I ate it.
「魚を骨と身に綺麗に分けて食べた」
ーI took the pit out of my peach carefully before I ate it.
「桃を種と実に綺麗に分けて食べた」
ご参考まで！
カナダ 
