Parents are 7 years, step parent is 15 yrs

7

Mom and dad: 19 days Mom and stepdad: 1 year & 3 days Dad and stepmom: 3 years & 56 days

3

1 year & [almost] 1 month. my parents birthdate numbers are all off by 1. mom: 6 - 19 - 1979 +1 -1 +1 dad: 7 - 18 - 1980 i thought it was cool when i found out as a kid lol

1

mine are 10 days apart

1