Question

Ericka and Destiny are roommates, and they have a dog. If neither of them is home, they hire someone to watch the dog. Ericka must go on business trips every 4 months, while Destiny has to go business trips every 6 months. If they both just got back from business trips, how many months will it be before they need to hire someone to look after the dog again? I said the answer would be : 2 months is this right