Question

Mary and her dad shared one dozen brownies 2/6 of them have nuts which dad doesn't eat how many brownies did dad not eat because they had nuts

Answer 1

“Dad”couldn’t eat 4 since 2/6 is equivalent to 4/12 and the problem states that Mary had cooked a dozen brownies so overall he couldn’t eat 4 brownies

Answer 2

He did not eat 4 of the brownies.  This is because 2/6 is equivalent to 4/12.  That means he couldn't have eaten 4 of them. Hope that helps!!