Javier’s Bakery sells donuts in packages of 3 and cookies in packages of 5 today the backers sold the same number of donuts and cookies . What is the smallest number of donuts that the bakery could have sold?please help me

Javiers Bakery sells donuts in packages of 3 and cookies in packages of 5 today the backers sold the same number of donuts and cookies What is the smallest numb class=