YOU SAID:

I got drunk and ran over 3 families of 5

INTO JAPANESE

酔って5人家族3人轢きました

BACK INTO ENGLISH

I got drunk and ran over 3 people in my family of 5

INTO JAPANESE

酔って家族5人で3人轢かれた

BACK INTO ENGLISH

Three people in a family of five got drunk and were run over

INTO JAPANESE

家族5人のうち3人が酔ってひかれた

BACK INTO ENGLISH

3 out of 5 family members were drunk and run over

INTO JAPANESE

家族の5人に3人が酔って轢かれた

BACK INTO ENGLISH

3 out of 5 family members were drunk and run over