YOU SAID:

my mom cooks better then your not mom

INTO JAPANESE

私のお母さんはあなたのお母さんよりも料理が上手です

BACK INTO ENGLISH

my mom is a better cook than your mom

INTO JAPANESE

私のお母さんはあなたのお母さんより料理が上手です

BACK INTO ENGLISH

my mom is a better cook than your mom